A. Harits Nu’man, S. M. Shafie, Yanti Sri Rejeki, N. Hami, Firman Shakti, M. G. Hassan. “STRATEGIES USING ALTERNATIVE ENERGY EFFICIENTLY IN UNIVERSITY BUILDINGS: CASE STUDY AT BANDUNG ISLAMIC UNIVERSITY”. International Journal of Advanced Science and Technology, Vol. 29, no. 05, June 2020, pp. 12450-7, https://sersc.org/journals/index.php/IJAST/article/view/25844.