F. . Zulfiryansyah, S. . Syahrorini, and M. N. . Habibi, “Air Quality Monitoring System using Unmanned Aerial Vehicle (UAV) Quadcopter Type: Sistem Monitoring Kualitas Udara menggunakan Unmanned Aerial Vehicle (UAV) Jenis Quadcopter”, PELS, vol. 2, no. 2, Jun. 2022.