N. Chaikhirin, N. Jantachum, and T. Sujaree, “The Development of a Training Curriculum on Teacher Competencies in Content and Language Integrated Learning (CLIL) for English Reading Comprehension for Primary School Teachers under Surin Primary Educational Service Area Office 3”, JDSC, vol. 13, no. 1, pp. 393–420, Feb. 2026.