V. O. Adepoju, A. A. Aderinlewo, O. U. Dairo, and O. R. Adetunji, “Effect of Moisture Content and Oil Palm Varieties on The Coefficient of Sliding Friction of Kernel and Shell on Fibre Material (Rug Canvas)”, AZOJETE, vol. 21, no. 4, pp. 1005-1011, Dec. 2025.