Mubarak, Syahrul, Soesilo Zauhar, Suryadi, and Endah Setyowati. 2022. “Impacts and Constraints on Implementing E-Certification Policies in Indonesia”. Kasetsart Journal of Social Sciences 43 (3):683–690. https://so04.tci-thaijo.org/index.php/kjss/article/view/260330.