Al-Jebouri, M. M., A. H. Al-Samarrai, and R. A. Abdeljabar. “Estimation of Environmental Chemical Pollution of Al-Baiji Oil Refinery in Iraq”. Advances in Applied Science and Technology Vol. 1, June 2019, pp. 33-39, https://stm1.bookpi.org/index.php/aast-v1/article/view/106.