JAMES HOFFMAN, P.; KWANGSAWAD, T. . The frequency and functions of Teachers’ use of L1 in EFL classrooms: The frequency and functions of Teachers’ use of L1 in EFL classrooms. วารสารการบริหารและนิเทศการศึกษา, [S. l.], v. 14, n. 3, p. 17–29, 2023. Disponível em: https://so20.tci-thaijo.org/index.php/JAD/article/view/51. Acesso em: 29 มิ.ย. 2025.