Kalima, Titi, and Diana Prameswari. 2018. “Natural Regeneration Population of Batang Rattan (Calamus Zollingeri Beccari) in Nupabomba Village, Production Forest Area, Central Sulawesi”. Jurnal Manajemen Hutan Tropika 24 (3). Bogor, INA, 175. https://journal.ipb.ac.id/index.php/jmht/article/view/25005.