Sudarmaji, Eka, AchsaniNoer Azam, ArkemanYandra, and FahmiIdqan. “Alternative PSS Business Models of ESCO: Towards an Innovative New Model”. Indonesian Journal of Business and Entrepreneurship (IJBE) 7, no. 3 (September 28, 2021): 296. Accessed April 27, 2024. https://journal.ipb.ac.id/index.php/ijbe/article/view/34867.