Sugiharyanto, Sugiharyanto. “PROSPEK PENGEMBANGAN BUDIDAYA TANAMAN KENTANG DI INDONESIA”. Geomedia Majalah Ilmiah dan Informasi Kegeografian 6, no. 2 (August 21, 2017). Accessed August 26, 2025. https://jurnal.uny.ac.id/index.php/geomedia/article/view/15388.