Yusuf R. Siahaan, Muhammad, Rakhmad Arief Siregar, and Faisal Amri Tanjung. 2023. “Investigating the Flexural Strength of Aluminium Honeycomb Sandwich Panels at Varying Angle of Impact Loads”. International Journal of Intelligent Systems and Applications in Engineering 11 (4s):322-27. https://ijisae.org/index.php/IJISAE/article/view/2670.