Asai, T., Honda, R., Watanabe, K., & Ozasa, T. (2020). A Correspondence Analysis of Fifty-Five Japanese Historical First-to Fifth-Year English-as-a-Foreign-Language Textbooks. International Journal of Learning, Teaching and Educational Research, 19(4), 223–247. Retrieved from http://www.ijlter.myres.net/index.php/ijlter/article/view/395