Nurmaidah, Sitanggang, Junaidi Junaidi, and Umiyati Etik. “Analysis of Factors Influencing Palm Oil farmers’ Income and Strategies for Increasing Income”. The Asian Journal of Professional & Business Studies 7, no. 1 (June 30, 2026): 164–178. Accessed July 28, 2026. https://journal.uptm.edu.my/index.php/ajpbs/article/view/526.