N. Yuonis, Z., زید, M. Ali, A., اسوان, K. Saleh, E., عماد, Abdalla Mohamed, M. and محمد 2022. Air Treatment by Negative Ions. Journal of Education and Science (JES). 31, 4 (Dec. 2022), 169–176. DOI:https://doi.org/10.33899/edusj.2022.135880.1276.