Boondee S, Thinwiangthong S. Pedagogical Content Knowledge of Intern Students using Lesson Study and Open Approach. dhammathas [internet]. 2023 Sep. 30 [cited 2026 Jan. 6];23(3):245-60. available from: https://so06.tci-thaijo.org/index.php/dhammathas/article/view/262495