Munirudin, Ali, Bayu Krisnamurthi, dan Ratna Winandi. “Kajian Pelaksanaan Kemitraan Perkebunan Kelapa Sawit Di Kabupaten Kutai Timur (Studi Kasus Di PT.NIKP)”. Jurnal Pertanian Terpadu 8, no. 2 (Desember 23, 2020): 211-225. Diakses September 17, 2021. https://ojs.stiperkutim.ac.id/index.php/jpt/article/view/262.