Ikponmwosa, E. E., S. O. Ehikhuenmen, and K. K. Irene. “COMPARATIVE STUDY AND EMPIRICAL MODELLING OF PULVERIZED COCONUT SHELL, PERIWINKLE SHELL AND PALM KERNEL SHELL AS A POZZOLANS IN CONCRETE”. Acta Polytechnica, vol. 59, no. 6, Dec. 2019, pp. 560-72, doi:10.14311/AP.2019.59.0560.