Odimegwu, T. C., Zakaria, I., Abood, M. M., Nketsiah, C. B. K., & Ahmad, M. (2018). Review on Different Beneficial Ways of Applying Alum Sludge in a Sustainable Disposal Manner. Civil Engineering Journal, 4(9), 2230–2241. https://doi.org/10.28991/cej-03091153