Affifuddin, Yunus, Faculty of Forestry, Universitas Sumatera Utara, Sumatra Utara, Indonesia, Indonesia
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Journal of Sylva Indonesiana Vol. 5 No. 01 (2022): Journal of Sylva Indonesiana - Articles
Study of policy determination to create a healthy watershed: A case study of Lepan watershed in Langkat district, North Sumatera, Indonesia
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