Hofisi, Costa, and Lewis Edwin Chigova. “Challenges and Opportunities of South Africa’s Electronic Vaccination Data System in the Provision of COVID-19 Vaccines”. International Journal of Criminology and Sociology 10 (November 5, 2021): 1474–1480. Accessed December 22, 2024. https://lifescienceglobal.com/pms/index.php/ijcs/article/view/8428.