Diana, Shinta Rahma, Agus Hidayat, Astri Rafikasari, Ida Musdafia Ibrahim, and Farida Farida. 2019. “Economic Assesstment of Satellite Remote Sensing Data in Indonesia: A Net Present Value Approach”. International Journal of Economics and Financial Issues 9 (1):140-46. https://www.econjournals.com/index.php/ijefi/article/view/7316.