JOSEFINA C. SANTANA, ARTURO GARCÍA-SANTILLÁN, MILKA ELENA ESCALERA-CHÁVEZ. Variables Affecting Proficiency in English as a Second Language. European Journal of Contemporary Education, [S. l.], v. 16, n. 1 , 2017. DOI: 10.13187/ejce.v16i 1 .141. Disponível em: https://ukkgate.com/index.php/ejce/article/view/141. Acesso em: 23 dec. 2024.