Sustiyana, Sustiyana, Syafrial Syafrial, and Mangku Purnomo. “ANALISIS SUPPLY CHAIN DAN EFISIENSI PEMASARAN GULA SIWALAN (Studi Kasus Di Kecamatan Dungkek, Kabupaten Sumenep)”. HABITAT 24, no. 2 (October 10, 2013): pp.110–119. Accessed March 23, 2025. https://habitat.ub.ac.id/index.php/habitat/article/view/115.