Hidayah, Nur, Abd. Rachim AF, and Indah Permatasari. “Pengaruh Biaya Promosi Terhadap Volume Penjualan Jahe Ja’M Di Kota Samarinda”. Educational Studies: Conference Series 4, no. 1 (December 9, 2024): 26–35. Accessed April 12, 2025. https://jurnal.fkip.unmul.ac.id/index.php/escs/article/view/4451.