Khelllou, Abderrezak, Kriker Abdelouahed, Hafsi Abdelatif, Mokhtari Khadija, and Siad Hind. 2021. “Study of the Mechanical Properties of Gypsum Tuff –Dunes Sand Mixture for Use in Saharan Road Construction”. International Journal of Integrated Engineering 13 (4): 254-62. https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/5789.