Hooi, Lim Boon, Chin Ngien Siong, Rhene A Camarador, Pham Thanh Anh Khoa, and Sri Sumartiningsih. 2022. “Comparison Between Gender and Vaccination Status on Psychological States During Peak Period of Total Serious and Critical Cases of COVID-19 Pandemic in Developing Countries”. International Journal of Health Sciences 6 (S5):11929-42. https://doi.org/10.53730/ijhs.v6nS5.11582.