Nora S, Kamelia Noviyanti Saragih, Aisar Novita. The Participation of Oil Palm Growers ( Elaeis guineensis Jacq.) in Marketing Their Products at the Multi-Business Consumer Cooperative in Pematang Bandar District, Simalungun Regency. Petrop [Internet]. 2025Mar.27 [cited 2025Aug.2];10(3):36-42. Available from: https://talenta.usu.ac.id/jpt/article/view/9101