Rosa, Rahayu Novrina, and Sofyan Zaman. “Pengelolaan Pembibitan Tanaman Kelapa Sawit (Elais Guineensis Jacq.) Di Kebun Bangun Bandar, Sumatera Utara”. Buletin Agrohorti 5, no. 3 (November 14, 2017): 325–333. Accessed December 24, 2025. https://journal.ipb.ac.id/bulagron/article/view/16470.