Osamuyi Osasu, Ebuka Nwankwo and Paul Iyoha. Suitability of Periwinkle Shell Mixed with Palm Kernel Shell Wastes as Replacement for Coarse Aggregate in Concrete Production. JETE [Internet]. 2021 Aug. 31 [cited 2024 Nov. 22];3(3). Available from: https://journals.nipes.org/index.php/jete/article/view/434