AHMAD LUKMAN NUR ROKHIM; HERLUKMAN, Syafrian; SAPUTRA, Jeki. Ultrasonic Sensor-Based Automatic System for Indonesian Army Physical Fitness Training. IRDH International Journal of Technology, Agriculture and Natural Sciences, [S. l.], v. 2, n. 1, p. 28–37, 2024. DOI: 10.64515/irdhijtans.v2i1.96. Disponível em: https://irdhjournals.com/ijtans/article/view/96. Acesso em: 16 may. 2026.