Productivity and Comparison of Resin Production from Pinus Merkusii Jungh Et De Vriese Against NPS Determined by Perum Perhutani. Jurnal Silva Tropika [Internet]. 2020Jan.15 [cited 2025Jan.8];3(2):199-205. Available from: https://mail.online-journal.unja.ac.id/STP/article/view/8151