ธนรุ่งเจริญกิจ ภ., & ชุมเกตุ จ. (2017). SEVICE INNOVATION WHICH AFFECTED E-BOOK PURCHASING DECISION OF NEW GENERATION CONSUMERS. Journal of Energy and Environment Technology of Graduate School Siam Technology College, 4(2), 18–27. Retrieved from https://ph01.tci-thaijo.org/index.php/JEET/article/view/186874