Masrupi, H., H. John Pahamzah, Syafrizal ., Ahmad Baihaki, and Nuni Yohaningsih. “Managing and Sustaining Human Competency in Pandemic Covid 19 through Sovereignity of Republic of Indonesia in the Era of 4.0”. The International Journal of Business & Management 8, no. 11 (November 30, 2020). Accessed July 27, 2024. http://internationaljournalcorner.com/index.php/theijbm/article/view/156700.