PIKULTHONG , T.; KERDNOONWONG, S. An Implementation of Flipped Classroom Within Role-Play Technique to Develop English Speaking Skills of Prathomsuksa 6 Students. Journal of Roi Kaensarn Academi, [S. l.], v. 7, n. 11, p. 493–511, 2022. Disponível em: https://so02.tci-thaijo.org/index.php/JRKSA/article/view/256376. Acesso em: 6 ต.ค. 2026.