«SECOND LANGUAGE VOCABULARY ACQUISITION UNDER TWO DIFFERENT TYPES OF INSTRUCTION: THE EFFECTS OF CONCENTRATED AND DISTRIBUTED INTRODUCTION IN IMMEDIATE AND DELAYED RETENTION». ES Review. Spanish Journal of English Studies, no. 36 (mayo 17, 2017): 7–26. Accedido enero 16, 2026. https://revistas.uva.es/index.php/esreview/article/view/734.