Tajerin, Tajerin. “Efisiensi Teknis Usaha Budidaya Pembesaran Ikan Lele Di Kolam (Studi Kasus Di Kabupaten Tulung Agung, Propinsi Jawa Timur)”. Economic Journal of Emerging Markets 12, no. 1 (June 23, 2009). Accessed November 21, 2024. https://journal.uii.ac.id/JEP/article/view/517.