Simandjorang, B.M.T.V. et al. 2022. Environmental Conservation Based on Community Empowerment: Case Study in Toba Caldera UNESCO Global Geopark. Jurnal Bina Praja. 14, 3 (Dec. 2022), 517–527. DOI:https://doi.org/10.21787/jbp.14.2022.517-527.