MUNENE, K. Effectiveness of Covid-19 contact tracing solutions . African Journal of Science, Technology and Social Sciences, [S. l.], v. 1, n. 1, 2022. DOI: 10.58506/ajstss.v1i1.67. Disponível em: https://journals.must.ac.ke/index.php/AJSTSS/article/view/67. Acesso em: 3 dec. 2024.