Lemehannet, Ali, and Ahcene Benmissi. “The Preserving of Urban Environment from the Pollution of Small and Medium Industries in Desert Cities: The Case of the Urban Agglomeration of Souf, Algeria”. Journal of Human Sciences , vol. 32, no. 4, Dec. 2021, pp. 129-45, https://revue.umc.edu.dz/h/article/view/3917.