Porobaten, Erffelient ., O. Esry H. Laoh, and Nordy F. L. Waney. “ANALISIS PENDAPATAN USAHA GULA AREN DI DUSUN KALATIN, KECAMATAN RATAHAN KABUPATEN MINAHASA TENGGARA”. AGRI-SOSIOEKONOMI 13, no. 3A (November 20, 2017): 39–50. Accessed November 27, 2024. https://ejournal.unsrat.ac.id/v3/index.php/jisep/article/view/18015.