Martini, Rose Dinda, Dorisnita, and Hartati. “Risk Factors for COVID-19: A Quantitative Study Conducted at Padang City Center Hospital”. International Journal of Statistics in Medical Research 12 (March 25, 2023): 26–32. Accessed November 21, 2024. https://lifescienceglobal.com/pms/index.php/ijsmr/article/view/9068.