Gustriyadi, Eko, Volvo Sihombing, Masrizal Masrizal, and Puput Dani Prasetyo Adi Adi. 2022. “A Real-Time Web Information System Based on A Global Positioning System for Monitoring Environmental Pollution”. Jurnal Riset Informatika 5 (1):165-70. https://doi.org/10.34288/jri.v5i1.204.