Mayashinta, Wida, and Muhammad Firdaus. “FAKTOR-FAKTOR YANG MEMENGARUHI TOTAL FACTOR PRODUCTIVITY INDUSTRI PERTANIAN INDONESIA PERIODE 1981-2010”. Jurnal Manajemen & Agribisnis 10, no. 2 (September 15, 2014): 90-97. Accessed October 28, 2020. http://journal.ipb.ac.id/index.php/jmagr/article/view/8480.