Daulay, Ulil Amri, Alfan Gunawan Ahmad, and Agus Purwoko. “Analysis of Land Cover Change Due to Deforestation at Holiday Resort Nature Park, North Sumatra Province, Indonesia”. Journal of Sylva Indonesiana 6, no. 01 (February 23, 2023): 44–58. Accessed August 25, 2026. https://talenta.usu.ac.id/Jsi/article/view/9229.