PALM KERNEL HUSK ASH (PKHA) AS AN ADMIXTURE (ACCELERATOR) IN CONCRETE. Nigerian Journal of Technology, [S. l.], v. 30, n. 3, p. 60–66, 2009. DOI: 10.4314/njt.303.21. Disponível em: https://nijotech.com/index.php/nijotech/article/view/21. Acesso em: 30 apr. 2026.