Kristiawan, R. B., Pramudi, G., & Roni, K. (2025). Thermal and Flame Retardant Performance of Glass Fiber-Reinforced UPR Composites Modified with Boric Acid and Sodium Silicate. Jurnal Teknik Mesin (Journal Of Mechanical Engineering), 14(2), 150–156. https://doi.org/10.22441/jtm.v14i2.33580