Nnam, R., Anozie, J., Emerenini, N., & Okoro, N. (2020). Bleaching Efficiency of Ortho-Phosphoric Acid Activated Kaolin Clay Sample on Crude Palm Oil Colour Pigment Removal. International Journal of Scientific Research in Chemical Sciences, 7(6), 12–20. Retrieved from https://ijsrcs.isroset.org/index.php/j/article/view/84