Items where Author is "Hutapea, Freddy Jontara"

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Article

Purwoko, Agus and Kuswanda, Wanda and Situmorang, Rospita Odorlina Pilianna and Hutapea, Freddy Jontara and Saputra, Muhammad Hadi and Pasaribu, Parlin Hotmartua Putra (2022) Orangutan Ecotourism on Sumatra Island: Current Conditions and a Call for Further Development. Sustainability, 14 (18). p. 11328. ISSN 2071-1050

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