SAYASEMAWONG, S.; NAKJUN, S. An Improvement of English Listening Ability of Wing 5 Air Force Officers Receiving Instruction with the Guidebooks Combined with Test-based Tutoring. Ratchaphruek Journal, [S. l.], v. 12, n. 2, p. 112–118, 2014. Disponível em: https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/240685. Acesso em: 26 aug. 2026.