Hardiyanto, Dimas, and Prantasi Harmi Tjahjanti. “Optimal Composition Ratio Achieves Maximum Compressive Strength in Sandwich Panels: Rasio Komposisi Optimal Menghasilkan Kekuatan Tekan Maksimal Pada Panel Sandwich”. Indonesian Journal of Innovation Studies 26, no. 4 (May 2, 2026): 10.21070/ijins.v26i4.2125. Accessed June 15, 2026. https://ijins.umsida.ac.id/index.php/ijins/article/view/2125.