A Study On The Development Of A Heart Rate Monitoring System To Determine Its Accuracy And Effectiveness. International Journal Of Technical Vocational And Engineering Technology, [S. l.], v. 5, n. 2, p. 11–21, 2024. Disponível em: https://journal.pktm.com.my/index.php/ijtvet/article/view/174. Acesso em: 3 apr. 2025.