Al- Khafaji, K. A., Saffa A. R., and abid al- Hadi. “Detection of Heavy Metal and Antibiotics Resistant in Some Isolates of Bacillus Isolated from Iraqi Soil ”. Journal of Madenat Alelem University College, Vol. 8, no. 1, June 2016, pp. 5-13, http://116.203.176.164/index.php/JMAUC/article/view/126.