BELLO, Aliyu Muhammad Bello; ISAH, Ismail. Compressive Strength of Marketed Hollow Blocks Produced in Sokoto, Nigeria. Direct Research Journal of Engineering and Information Technology, [S. l.], v. 11, n. 9, p. 145–148, 2023. Disponível em: https://journals.directresearchpublisher.org/index.php/drjeit/article/view/335. Acesso em: 2 may. 2026.