UBONNOI, P.; YANGKLANG, P. The Development of English Speaking Skills using a Task-based Learning Approach Focused on Selling Local Products for the Ninth Grade Students. Journal of Education Studies, Chulalongkorn University, Bangkok, Thailand, v. 49, n. 4, p. EDUCU4904013, 2021. DOI: 10.14456/educu.2021.72. Disponível em: https://so02.tci-thaijo.org/index.php/EDUCU/article/view/253621. Acesso em: 16 sep. 2026.