Arshad, Imran, Clea Anne E. Vallejera, and Zaheer Ahmed Khan. “Finite Element Analysis of Phosphate Movement through a Clayey-Sandy Soil by Using Geo-Slope Software (CTRAN/W)”. PSM Biological Research 4, no. 1 (December 5, 2018): 20-28. Accessed March 19, 2019. http://journals.psmpublishers.org/index.php/biolres/article/view/255.