Radityo, Satriyo Ihsan, Rini Dwiastuti, and Abdul Wahib Muhaimin. “DAYA SAING KARET ALAM INDONESIA DI PASAR DUNIA”. HABITAT 25, no. 3 (January 26, 2015): pp.143–150. Accessed June 29, 2022. https://habitat.ub.ac.id/index.php/habitat/article/view/157.