Demissew A, Fufa F, Assefa S. PARTIAL REPLACEMENT OF CEMENT BY COFFEE HUSK ASH FOR C-25 CONCRETE PRODUCTION. JCEST [Internet]. 2019Apr.25 [cited 2024Apr.24];10(1):12-1. Available from: https://publisher.unimas.my/ojs/index.php/JCEST/article/view/1433