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.