Farouk M. Muhauwiss and Ahmed H. salh (2022) “Influence of PPF on leaching and subsidence of Gypseaus soils”, Eurasian Journal of Engineering and Technology, 11, pp. 141–156. Available at: https://geniusjournals.org/index.php/ejet/article/view/2450 (Accessed: 8 April 2025).