PIANSANGSAN, L.; YANGNOK, P.; LERTKONSARN, S. Development Free Fall Motion teaching aid with Metal Detection sensor. SciTech Research Journal, Maha Sarakham, Thailand, v. 7, n. 1, p. 27–40, 2024. Disponível em: https://ph02.tci-thaijo.org/index.php/jstrmu/article/view/252147. Acesso em: 16 sep. 2026.