Mazliah, M. et al. 2019. Optimization of physical and mechanical properties of glycerol - modified natural rubber/starch - filled carbon black composites using two level factorial design. Journal of Mechanical Engineering and Sciences. 13, 2 (Jun. 2019), 4989–5005. DOI:https://doi.org/10.15282/jmes.13.2.2019.16.0413.