MA. THERESA LIQUIGAN EUSTAQUIO. SECOND LANGUAGE LEARNERS’ PROFICIENCY LEVEL AND THE FACTORS AFFECTING THEIR SPEAKING ABILITY. Researchers World - International Refereed Social Sciences Journal, [S. l.], v. 6, n. 3, p. 89–100, 2021. Disponível em: https://researchersworld.com/index.php/rworld/article/view/626. Acesso em: 11 mar. 2026.