Applying Contract Farming Modelin Welfare-Enhancing Effort for Palm Oil Farmers in Sanggau Regency (West Kalimantan). ajsss [Internet]. 2018 Mar. 26 [cited 2026 Apr. 28];3(1):p63. Available from: https://journal.chapjulypress.org/index.php/ajsss/article/view/2054