Novira, N. “Indonesia’s Smallholder Oil Palm Farmer: High Profitability or Vulnerable?”. ICHELSS: International Conference on Humanities, Education, Law, and Social Sciences, Vol. 2, no. 1, Nov. 2022, pp. 795-8, http://103.8.12.212:33180/unj/index.php/hispisi/article/view/30959.