N. Zakaria, M., et al. “Interfacial Shear Strength of Kenaf Single Fibre Reinforced Polyester Matrix: Observation of Fibre Fracture and Matrix Debonding”. International Journal of Engineering & Technology, vol. 7, no. 4.14, Dec. 2019, pp. 444-8, https://doi.org/10.14419/ijet.v7i4.14.27714.