Risby, M.S., S.V. Wong, A.M.S. Hamouda, A.R. Khairul, and M. Elsadig. 2008. “Ballistic Performance of Coconut Shell Powder/Twaron Fabricagainst Non-Armour Piercing Projectiles”. Defence Science Journal 58 (2), 248-63. https://doi.org/10.14429/dsj.58.1645.