Nicholas Kuan, H. T., K. Jadum, M. Yusof, S. N. Ting, and C. K. Ng. “Study of Betel Nut Husk Fibre Reinforced Polymer Composite”. Journal of Applied Science & Process Engineering, Vol. 6, no. 2, Sept. 2019, pp. 378-85, doi:10.33736/jaspe.1812.2019.