Mardani, Farzaneh, Nancy Parra Vázquez, Jinashree Rajendrakumar, and Seyed Milad Saadati. 2022. “The Experience of Learning a Second Language As an Adult: A Qualitative Exploration of Motivation and Challenges”. International Journal of Education and Cognitive Sciences 5 (2): 16-22. https://journalecs.com/index.php/ecs/article/view/123.