Br Bangun, Rita Herawaty. “KARAKTERISTIK RUMAH TANGGA USAHA TANI DAN KELAYAKAN USAHA TANI KUBIS DI SUMATERA UTARA”. Jurnal Ilmiah Sosio-Ekonomika Bisnis 24, no. 01 (June 23, 2021): 12-20. Accessed July 22, 2024. https://online-journal.unja.ac.id/jseb/article/view/13481.