Zhang, P. ., Wang, Z. . and Adesope, O. . (2016) “The Effects of Goal Type, Learning Interest, and Task Difficulty on Learning English Words”, International Journal of Learning, Teaching and Educational Research, 15(2), pp. 32–46. Available at: https://ijlter.net/index.php/ijlter/article/view/970 (Accessed: 1 August 2026).