Author Guidelines

General Requirements

Manuscripts should be prepared as a softcopy document using A4 paper size and a single-column format. The page margins should be:

• Top: 2.54 cm
• Bottom: 2.54 cm
• Left: 1.90 cm
• Right: 1.90 cm

Paragraph indentation should be 0.5 cm. The manuscript should use 1.2 line spacing, Arial font, and 10 pt font size.

Editorial Screening and Review

All submitted manuscripts undergo an editorial screening to determine whether they meet the quality and publication requirements of JLPF.

Manuscripts may be rejected by the Editor without being sent for formal peer review if:

1. the topic is outside the scope of the journal;
2. the research results provide insufficient benefit or contribution;
3. the scope and purpose of the study are not adequately formulated;
4. the findings do not contribute to the advancement of scientific knowledge; or
5. the manuscript is incomplete.

Eligible manuscripts will be reviewed by the journal's reviewers for approximately two weeks. Reviewer comments will be communicated to the authors within approximately three weeks after the initial submission.

Authors are expected to submit the revised manuscript to the Editor within one week after receiving the reviewers' comments.

Manuscript Structure

The manuscript should consist of the following sections:

1. Title
2. Abstract
3. Introduction
4. Methods
5. Results
6. Discussion
7. Conclusion
8. Acknowledgment (if any)
9. References

Mathematical Formulas and Units

Mathematical formulas should be created using the Microsoft Equation program. Variables should be written in italic type, while units should follow the International System of Units (SI) and should not be italicized.

Figures

Figure captions should be placed below and centered under each figure. Captions should use Arial, 9 pt.

Figure captions must be provided separately from the figure and should not be embedded or attached to the image itself.

Tables

Table captions should be placed above the table and centered. Captions should use Arial, 9 pt.

Table captions containing more than one line should use 1 cm line spacing.

Horizontal lines in tables should be 1 pt wide. Vertical lines should be hidden.

Title and Author Information

The title should be clear, concise, descriptive, and informative. Abbreviations and mathematical formulas should be avoided in the title.

Author information should be provided in full, including the author's name, institutional affiliation, institutional address, postal code, and email address of the corresponding author.

Abstract

The abstract should be written briefly and factually in two languages: Bahasa Indonesia and English.

The abstract should be presented separately from the main body of the article. References should not normally be included in the abstract. If a reference is indispensable, the author's name and publication year should be provided.

The use of non-standard abbreviations should be avoided. If an abbreviation is necessary, its full form should be provided when it is first mentioned.

Introduction

The Introduction should clearly present the purpose and objectives of the article or study. It should provide an adequate background and rationale for the research without excessive use of detailed references or presenting research results.

Methods

The methods applied in the study should be described clearly and, where appropriate, supported by relevant references. Any modifications to established methods should be explained.

For literature review articles, the review procedure and data analysis approach should be described clearly and emphasized.

Results

The Results section should present the main outcomes of data analysis and hypothesis testing. Tables, figures, or graphs may be used to support and clarify the presentation of the results.

Discussion

The Discussion should explain the significance and contribution of the research findings. It should interpret and contextualize the results rather than merely repeat the information presented in the Results section.

Conclusion

The main findings and implications of the study should be presented briefly and clearly in the Conclusion section.

References

In-text citations should use the author's last name and year. When citing multiple references, the references should be ordered according to the most recent publication.

For works written by two authors, both authors' names should be cited. For works written by three or more authors, cite the first author's name followed by et al.

Every reference cited in the manuscript must be included completely in the reference list, and every reference listed should be cited in the manuscript.

Unpublished references are not recommended unless their use is necessary and justified.

Writing Style and Manuscript Quality

The manuscript should be written clearly and consistently. The use of hyphens (-) should be avoided except where required for repeated words according to the applicable language conventions.

Manuscripts may be rejected if the material is outside the journal's scope, the scientific quality is insufficient, the manuscript does not follow the required writing format, the language is unnecessarily complicated, the work is not original research, or correspondence with the journal is unresponsive.

Reference Format

The following examples illustrate the reference formats used by JLPF:

Author Checklist