P1, A., & L.P, W. (2008). Solidification/stabilization Treatment of Spent Catalyst (Vâ‚‚Oâ‚…) from a Sulfuric Acid Plant using Ordinary Portland Cement (OPC) and an Additive. Malaysian Journal of Science, 27(1), 7–18. Retrieved from http://mjs.um.edu.my/index.php/MJS/article/view/7927