BASHI, O. I. D.; WAN HASAN, W. Z.; AZIS, N.; SHAFIE, S.; WAGATSUMA, H. Autonomous Quadcopter Altitude for Measuring Risky Gases in Hazard Area. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), [S. l.], v. 10, n. 2-5, p. 31–34, 2018. Disponível em: https://jtec.utem.edu.my/jtec/article/view/4345. Acesso em: 27 apr. 2024.