Thungsakul, S., and C. Liangpanit. “The Use of Reading-Based Vocabulary Exercises to Improve Vocabulary Learning for Third - Year Business Vocational Students at Faculty of Industrial Technology, Nakhon Phanom University”. Journal of Humanities and Social Sciences Prince of Songkla University, vol. 11, no. 1, Jan. 2015, pp. 83-105, https://so03.tci-thaijo.org/index.php/eJHUSO/article/view/83207.