RIVALDI, Rivaldi. PROTOTYPE OF AIR PURIFIER TO REDUCE AIR CONTAMINANTS AND ELIMINATE INSECTS BASED ON ESP32 AT UNIVERSITAS HARAPAN MEDAN. Jurnal Sistem Informasi dan Ilmu Komputer, [S. l.], v. 6, n. 1, p. 82–86, 2022. DOI: 10.34012/jurnalsisteminformasidanilmukomputer.v6i1.2819. Disponível em: http://139.162.50.187/index.php/jusikom/article/view/2819. Acesso em: 4 apr. 2026.