Hestiawan, Hendri, Jamasri, and Kusmono. “Pengaruh Perlakuan Alkali-Silan Terhadap Sifat Mekanis Komposit Hibrid Yang Diperkuat Serat Agel Dan Serat Gelas : Effect of Alkali-Silane Treatment on Mechanical Properties at Glass Fabric and Woven Agel (Corypha Gebanga) Reinforced Hybrid Composites”. Jurnal Metalurgi dan Material Indonesia 3, no. 1 (April 30, 2020): 8-12. Accessed January 16, 2021. http://materialmetalurgi.id/index.php/JMMI/article/view/63.