“The Role of Mixed Alkaline Earth Effects on The Elastic Properties of XBaF2–(50 – X)CaF2–50B2O3 Fluoroborate Glasses: Comparative Analysis of Ultrasonic Measurements and Theoretical Models ”. 2025. Malaysian Journal of Fundamental and Applied Sciences 21 (6): 2825-43. https://doi.org/10.11113/mjfas.v21n6.3892.