1.
Kongsaen K, Onthanee A. The Delvelopment of Learning Activities Based on Flipped Classroom to Promote English Listening and Speaking Proficiency for Grade 6. ambj [Internet]. 2022 Jun. 13 [cited 2024 Apr. 26];7(1):115-29. Available from: https://so06.tci-thaijo.org/index.php/ambj/article/view/251311