Nisa Aprilia, Karina, and Erlinda Muslim. “Strategic Planning Based on the Impact of Social Support and Social Trust on COVID-19 Risk Response in Formal and Informal Workers”. Jurnal Sistem Teknik Industri 25, no. 1 (January 28, 2023): 1-17. Accessed April 25, 2024. https://talenta.usu.ac.id/jsti/article/view/8506.