Hien, Nguyen Thi, и Mai Van Hung. «Professional Standards Training and Understanding Pre-School Teachers’ Knowledge about Professional Standards». Journal of Asian Multicultural Research for Educational Study 2, no. 1 (май 10, 2021): 10-15. просмотрено октябрь 16, 2026. https://amrsjournals.com/jamres/article/view/116.