สมเพ็ง ภ.; เชื้อสาธุชน ช.; เชื้อสาธุชน เ. The Causal Factors Influencing English Achievement of Prathom Suksa 6 Students under Yasothon Primary Educational Service Area Office 1. Ubon Ratchathani Journal of Research and Evaluation, [S. l.], v. 4, n. 2, p. 31–43, 2021. Disponível em: https://so06.tci-thaijo.org/index.php/ubonreseva/article/view/250984. Acesso em: 16 sep. 2026.