“APPLICATION OF SCHEFFE’S MODEL FOR STABILIZATION OF AMURO-OKIGWE SUBGRADE USING MALE INFLORESCENCE OF OIL PALM ASH”. Nigerian Journal of Technology 38, no. 1 (December 24, 2018): 60–74. Accessed April 16, 2026. https://nijotech.com/index.php/nijotech/article/view/1915.