YAMAMOTO, NORIYASU. “AN INTERACTIVE E-LEARNING SYSTEM FOR IMPROVING STUDENTS MOTIVATION AND SELF-LEARNING BY USING SMARTPHONES”. Journal of Mobile Multimedia 11, no. 1-2 (June 28, 2015): 066–074. Accessed September 8, 2024. https://journals.riverpublishers.com/index.php/JMM/article/view/4539.