Risandriya, S. K., and F. Marbun. “Developmant of Gas Hazard Environment Prediction Based on Fuzzy-KNN and MQ2 Sensor in Microcontroller”. JURNAL JARTEL: Jurnal Jaringan Telekomunikasi, vol. 16, no. 2, June 2026, pp. 138-44, doi:10.33795/jartel.v16i2.10102.