Palasarn, Surasith. “Comparison of Interior Ballistic in 5.56 mm Rifle Using Single Perforated Grain and Spherical Grain Gunpowder”. Defence Technology Academic Journal 8, no. 17 (June 27, 2026): R41 - R50. accessed September 12, 2026. https://sc01.tci-thaijo.org/index.php/dtaj/article/view/241636.