Nugraha, D., M. Ferichani, and J. Sutrisno. “OPTIMALISASI SEKTOR PERKEBUNAN DALAM MEMANFAATKAN REGIONAL COMPREHENSIVE ECONOMIC PARTNERSHIP (RCEP)”. Proceeding SENDI_U, July 2019, pp. 596-01, https://www.unisbank.ac.id/ojs/index.php/sendi_u/article/view/7359.