Rahardjo, Budi, and Suhargo . “The Roles of Engineering Fot the Development of Agro Industries in Indonesia”. Jurnal Teknologi dan Industri Pangan 16, no. 2 (1): 174. Accessed August 13, 2020. http://dthh.journal.ipb.ac.id/index.php/jtip/article/view/499.