Mbemba, K. M., Koutouma, B. D., & Ouamba, J. M. (2019). Physico-chemical Characterization of Wastewaters Discharged into Songolo River at Pointe-Noire, Republic of Congo. Chemical Science International Journal, 28(1), 1-8. https://doi.org/10.9734/CSJI/2019/v28i130126