NUR FATIN AQILAH MOHAMAD SALEH; SHAH RIZAILLI MUKHTAR; ABDULLAAH FEISAL. Development of Covid-19 Health Monitoring System for Hajj and Umrah Management . Journal of Engineering Technology, [S. l.], v. 10, n. 1, p. 221–226, 2022. Disponível em: https://ejournal.unikl.edu.my/index.php/jet/article/view/346. Acesso em: 14 jun. 2026.