Muzambiq S. Geotourism and Rural Development, Baktiraja Subsub-District : Case Study Toba Caldera Area Humbang Hasundutan Regency. MWS [Internet]. 2023 Mar. 30 [cited 2024 Nov. 21];21(1):1-12. Available from: https://jurnal.ampta.ac.id/index.php/MWS/article/view/398