Zulkarnaen, I. “CLASSIFICATION OF CAPABILITY YIELD ON LAPANG TERPADU LABORATORY AGRICULTURE FAKULTY, UNIVERSITY OF LAMPUNG”. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering), vol. 4, no. 3, Oct. 2015, http://jurnal.fp.unila.ac.id/index.php/JTP/article/view/865.