Hidayat, Taufik, Rahutomo Mahardiko, and Ali Miftakhu Rosyad. “The Analysis of Data Preparation to Validate Model Values of Information Technology”. Virtual Economics 6, no. 2 (June 30, 2023): 23–34. Accessed November 21, 2024. https://virtual-economics.eu/index.php/VE/article/view/259.