Faesol, A. ., I. Ashar, and G. . Yulisusianto. “The IMPLEMENTATION OF TRACKING SYSTEM IN THE REAL TIME OF ANDROID FOR SENDING PERSONEL COORDINATION BASED ON MQTT”. Jurnal Telkommil, vol. 2, no. 2, Oct. 2020, pp. 29-36, doi:10.54317/kom.v2iOktober.179.