Palasarn S. Comparison of Interior Ballistic in 5.56 mm Rifle Using Single Perforated Grain and Spherical Grain Gunpowder . Def. Technol. Acad. J. [internet]. 2026 Jun. 27 [cited 2026 Sep. 12];8(17):R41 - R50. available from: https://sc01.tci-thaijo.org/index.php/dtaj/article/view/241636