Muanda, M. M., & Omalanga, P. P. D. (2021). Modeling and Optimization of Manganese Carbonate Precipitation Using Response Surface Methodology and Central Composite Rotatable Design. The Journal of Engineering and Exact Sciences, 7(3), 12632–01. https://doi.org/10.18540/jcecvl7iss3pp12632-01-22e