Nasip, Ismiriati, and Eka Sudarmaji. “Government Measures to Promote New Retrofitting Business and Financing Option in Indonesia”. International Journal of Engineering and Technology 7, no. 3.25 (August 14, 2018): 531–537. Accessed May 19, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/17791.