1. World Health Organization (WHO). WHO Coronavirus (COVID-19) Dashboard. Retrieved Jan 6, 2022, from https://covid19.who.int/
2. World Health Organization (2021). The impact of COVID-19 on health and care workers: a closer look at deaths. (WorkingPaper-2021.1). https://www.who.int/publications/i/item/WHO-HWF-WorkingPaper-2021.1
3. World Health Organization (WHO). State of the world’s nursing 2020: investing in education, jobs and leadership. Retrieved Apr 1, 2022, from https://www.who.int/publications/i/item/9789240003279
4. Institute for Health Behavioural Research Institute for Health Behavioural Research 2020. Psychological Effects on Coronavirus Disease 2019 (COVID-19) Amongst Healthcare Workers - Key Findings. Retrieved Jan 1, 2022, from https://iptk.moh.gov.my/images/research/2020/infografik-psychological_effects_of_coronavirus_disease_2019_covid-19_amongst_healthcare_workers.pdf
5. World Health Organization (WHO). Mental Health and Psychosocial Considerations during the COVID-19 Outbreak. Retrieved Jan 1, 2022, from https://www.who.int/docs/default-source/coronaviruse/mentalhealth-considerations.pdf