DELOS SANTOS, Manuel Luis C. et al. Smart Tracking Device with Pulse Sensor via GSM/GPS Module. International Journal of Computing Sciences Research, [S.l.], v. 8, p. 3349-3362, oct. 2024. ISSN 2546-115X. Available at: <//stepacademic.net/ijcsr/article/view/641>. Date accessed: 07 nov. 2024.