Reissan Shakir, R. (2006) “Stability Coefficients Charts for Two Layered Earth Slopes Using Finite Element Method”, Journal of Engineering and Sustainable Development, 10(4), pp. 120–137. Available at: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1776 (Accessed: 3 April 2025).