Teng, Feng. “The Effectiveness of Extensive Reading on EFL Learners’ Vocabulary Learning: Incidental Versus Intentional Learning”. BELT - Brazilian English Language Teaching Journal 6, no. 1 (October 23, 2015): 66–80. Accessed May 7, 2024. https://revistaseletronicas.pucrs.br/ojs/index.php/belt/article/view/20033.