1.
Siriphot T, Hamcumpai S. The Effect of Cooperative Learning on Students’ Speaking Self-efficacy. GS KKU HS [internet]. 2020 Aug. 30 [cited 2025 Apr. 10];8(2):145-54. available from: https://so04.tci-thaijo.org/index.php/gskkuhs/article/view/245330