Nabeel Abdulqahar, S., I. Abdulwahab, M. and K. Hummadi, K. (2019) “Reuse of Spent Hydrotreating Catalyst of the Middle Petroleum Fractions”, Iraqi Journal of Chemical and Petroleum Engineering, 20(1), pp. 15–22. doi:10.31699/IJCPE.2019.1.3.