Farida Herry Susanty. “The Valuation of Thinning Efectivity Based on Increment Respond of Natural Forest Log Over Area”. Journal of Sylva Indonesiana 3, no. 02 (August 31, 2020): 87–96. Accessed September 14, 2026. https://idjpcr.usu.ac.id/Jsi/article/view/4291.