Kayode-Ojo, N. and Edeoghon, E. E. 2021. Evaluation of Laterite Soil Reinforced with a Mixture of Periwinkle and Palm Kernel Shells as Road Construction Materials in Niger Delta, Nigeria. Journal of Energy Technology and Environment. 3, 4 (Dec. 2021). DOI:https://doi.org/10.37933/nipes.e/3.4.2021.8.