TEWELE (PHD), T. .; GIDAY WELDETNSAE, B. . Experimental Investigation on the Impact of Nano-alumina Partial Cement Replacement in Quarry Sand Concrete. Ethiopian Journal of Technical and Vocational Education and Training, [S. l.], v. 3, n. 1, 2026. DOI: 10.20372/tvet-ftveti-v3i1.95. Disponível em: https://journal.ftveti.edu.et/index.php/journal/article/view/95. Acesso em: 25 oct. 2026.