Rutamornchai, N. and Inpanich, P. 2026. CONSIDERATIONS IN COURSEBOOK CREATION AND PROFESSIONAL DEVELOPMENT: A CORPUS-ASSISTED SELF-STUDY. LLT Journal: A Journal on Language and Language Teaching. 29, 2 (Oct. 2026), 723–743. DOI:https://doi.org/10.24071/llt.v29i2.1160.