Hanjayani, Masita, and Nelson M. Siahaan. “Hatinggian Eco-Park Hotel Resort (Ecological Architecture)”. International Journal of Architecture and Urbanism 4, no. 3 (November 30, 2020): 291-299. Accessed November 24, 2024. https://talenta.usu.ac.id/ijau/article/view/5041.