L Tobing, Dian, Anjelina Pasaribu, Bila May, Parlaungan Siahaan, and Reh Parangin angin. “Legal Protection of Geographical Indications Concerning Nira Water in Dolog Huluan Village Dolog Masagal Pematang Raya District”. Edumaspul: Jurnal Pendidikan 7, no. 2 (October 1, 2023): 3498-3501. Accessed May 18, 2024. https://ummaspul.e-journal.id/maspuljr/article/view/6918.