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Perangin-Angin, G.P., Nurul Qomar and Yulia Andriani 2023. The Contribution of the Community Forest Program to the Income of the Lumban Lansang Forest Farmer Group, Siantar Utara Village, Parmaksian District, Toba Samosir Regency. Jurnal Online Pertanian Tropik. 9, 3 (Jan. 2023), 201-206. DOI:https://doi.org/10.32734/jopt.v9i3.9234.