Preschern, J., Hunter, M., Born-Lechleitner, I. and Kobylak, C. 2025. Developing Prompt Engineering as a 21st-Century Skill: The Impact of Structured ChatGPT Instruction in EFL Education. GILE Journal of Skills Development. 5, 3 (Oct. 2025), 87–108. DOI:https://doi.org/10.52398/gjsd.2025.v5.i3.pp87-108.