Hassan, A., H. Yahaya, A, A. Ibrahim, Z, and H. P. R. “Short- and Long-Glass Fibre Reinforced Polyamide 6,6 Composites: Tensile Properties of Injection Moulded Specimens”. Malaysian Journal of Science, vol. 20, no. 1, Apr. 2001, pp. 51-55, https://juku.um.edu.my/index.php/MJS/article/view/8776.