Padchonga, Nelson F., Novelyn L. Alitan, Cecil G. Abilang, and Ceria Mae G. Simalong. 2026. “Development and Validation of the SELFIE Scale for English Pre-Service Teachers’ Instructional Self-Efficacy ”. ETDC: Indonesian Journal of Research and Educational Review 6 (1):64-79. https://doi.org/10.51574/ijrer.v6i1.5304.