ธนรุ่งเจริญกิจ ภ. and 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), pp. 18–27. Available at: https://ph01.tci-thaijo.org/index.php/JEET/article/view/186874 (Accessed: 12 May 2024).