HARFINA, D. M.; ZAINI, Z.; WULUNG, W. J. Disinfectant Spraying System with Quadcopter Type Unmanned Aerial Vehicle (UAV) Technology as an Effort to Break the Chain of the COVID-19 Virus. Journal of Robotics and Control (JRC), [S. l.], v. 2, n. 6, p. 502–507, 2021. DOI: 10.18196/jrc.26129. Disponível em: https://journal.umy.ac.id/index.php/jrc/article/view/10462. Acesso em: 6 sep. 2025.