Khalifa A, Kato T, Yamamoto S. Learning Effect of Implicit Learning in Joining-in-type Robot-assisted Language Learning System. Int. J. Emerg. Technol. Learn. [Internet]. 2019 Jan. 30 [cited 2024 Nov. 22];14(02):pp. 105-123. Available from: https://online-journals.org/index.php/i-jet/article/view/9212