COMBINED EFFECT OF RICE HUSK ASH AND CEMENT KILN DUST AS CEMENT REPLACEMENT MATERIALS IN CONCRETE. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 4, n. 1, p. 446–452, 2020. Disponível em: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/66. Acesso em: 11 sep. 2025.