NWAWUDU, Ezenwa; IKWU, Amanze; IKWU, Ugochi; OPARAH, Nneoma; NNOROM, Stanley. Proposed Design of a Real-Time COVID-19 Pandemic Contact Tracing Using Mobile Phone. European Scientific Journal, ESJ, [S. l.], v. 16, n. 36, p. 1, 2020. DOI: 10.19044/esj.2020.v16n36p1. Disponível em: https://test.eujournal.org/index.php/esj/article/view/13762. Acesso em: 18 apr. 2025.