Winarni, R., Widuatie, M. R. E., Sasmita, N., & Endrayadi, E. C. (2025). Coffee, Community, and Capitalism: Analyzing Worker Economic Strategies at Blawan Plantation in East Java (2016-2022). Yupa: Historical Studies Journal, 9(1), 38–59. https://doi.org/10.30872/yupa.v9i1.3166