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. Jurnal Online Pertanian Tropik, [S. l.], v. 8, n. 3, p. 228–233, 2021. DOI: 10.32734/jopt.v8i3.9176. Disponível em: https://idjpcr.usu.ac.id/jpt/article/view/9176. Acesso em: 4 aug. 2025.