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