tarigan, Putrisina. “ANALISIS SALURAN TATANIAGA KELAPA SAWIT DI KECAMATAN KUALUH SELATAN”. Agriprimatech 2, no. 2 (December 20, 2019): 22–26. Accessed April 2, 2026. http://139.162.50.187/index.php/Agriprimatech/article/view/781.