Haqqul Mulki, M., and B. . Octofryana Yousca Marpaung. “Performance Indicators for Energi Management of Tourism in The Pangururan District Kabupaten Samosir”. International Journal of Architecture and Urbanism, vol. 6, no. 1, Mar. 2022, pp. 15-20, doi:10.32734/ijau.v6i1.8668.