Salsabila, R., Hikmawan, R., & Romdhoni, R. D. (2026). Immersive TOEFL Preparation in the Metaverse: Usability and Navigability of a Roblox-Based Game Developed via GDLC. Journal of Informatics and Vocational Education, 9(2), 67-83. https://doi.org/10.20961/joive.v9i2.3520