Diana, Shinta Rahma, Agus Hidayat, Astri Rafikasari, Ida Musdafia Ibrahim, and Farida Farida. “Economic Assesstment of Satellite Remote Sensing Data in Indonesia: A Net Present Value Approach”. International Journal of Economics and Financial Issues 9, no. 1 (January 12, 2019): 140–146. Accessed December 8, 2022. https://www.econjournals.com/index.php/ijefi/article/view/7316.