Study of Palm Plant Productivity (Arenga pinnata merr.) Based on Differences in Companion Plants: Kajian Produktivitas Tanaman Aren ( Arenga pinnata merr. ) Berdasarkan Perbedaan Tanaman Pendamping. Petrop [Internet]. 2021Dec.21 [cited 2025Sep.23];8(3):228-33. Available from: https://idjpcr.usu.ac.id/jpt/article/view/9176