“APPLICATION OF SCHEFFE’S MODEL FOR STABILIZATION OF AMURO-OKIGWE SUBGRADE USING MALE INFLORESCENCE OF OIL PALM ASH” (2018) Nigerian Journal of Technology, 38(1), pp. 60–74. Available at: https://nijotech.com/index.php/nijotech/article/view/1915 (Accessed: 16 April 2026).