Mohammed, Abdul Halim A-K, and Dhuha A. Al-Saddi. “Factors Affecting the Extraction Process”. Iraqi Journal of Chemical and Petroleum Engineering 4, no. 2 (June 30, 2003): 5–13. Accessed November 12, 2024. https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/667.