Sasongko, Aditya, & Djoko Soejono.
" SISTEM PENGUSAHAAN USAHATANI SEMANGKA DI LAHAN PASIR : APAKAH MENGUNTUNGKAN?." <em>JSEP (Journal of Social and Agricultural Economics)</em> [Online], 14.3 (2021): 222-235. Web.  7 May. 2024