Lubis, Rio Elvandari, and Adolf Pieter Lontoh. “Manajemen Panen Kelapa Sawit (Elaeis Guineensis Jacq.) Di Kebun Adolina, Serdang Bedagai, Sumatera Utara”. Buletin Agrohorti 4, no. 2 (May 9, 2016): 144–154. Accessed December 25, 2025. https://journal.ipb.ac.id/bulagron/article/view/15013.