Rivaldi, R. (2022). PROTOTYPE OF AIR PURIFIER TO REDUCE AIR CONTAMINANTS AND ELIMINATE INSECTS BASED ON ESP32 AT UNIVERSITAS HARAPAN MEDAN. Jurnal Sistem Informasi Dan Ilmu Komputer Prima(JUSIKOM PRIMA), 6(1), 82-86. https://doi.org/10.34012/jurnalsisteminformasidanilmukomputer.v6i1.2819