N. Mohd Nurazzi, et al. “Curing Behaviour of Unsaturated Polyester Resin and Interfacial Shear Stress of Sugar Palm Fibre”. Journal of Mechanical Engineering and Sciences, vol. 11, no. 2, June 2017, pp. 2650-64, doi:10.15282/jmes.11.2.2017.8.0242.