SHUAIB-BABATA, Y. L., Ambali, I. O., Abdulqadir , L. B., Ibrahim, H. K., Aremu, I. N., & Ibraheem, T. O. (2020). Production of Abrasive Sandpaper using Periwinkle Shells and Crab Shells. International Journal of Engineering Materials and Manufacture, 5(2), 55–61. https://doi.org/10.26776/ijemm.05.02.2020.04