Asem, S. O., R. F. Misak, A. Alenezi, W. Y. Roy, S. A. Shahid, and M. Al-Awadi. “Effects of Crude Oil on Some Soil Types of Kuwait”. Kuwait Journal of Science, vol. 43, no. 4, Nov. 2016, https://journalskuwait.org/kjs/index.php/KJS/article/view/1332.