“Peran Proefstation Oost Java dalam Transformasi Industri Gula di Pasuruan Tahun 1887–1921”, IPSSJ, vol. 3, no. 07 Juli, pp. 448–456, Jul. 2026, Accessed: Oct. 21, 2026. [Online]. Available: https://ipssj.com/index.php/ojs/article/view/1714