Ali, Syed Ahtsham, Syed Irfan Ali, Xu Qiyu, and Xu Ming. “Directions to Explore the Principles of Service Innovation: With Various Companies’ Case Study”. Journal of Research in Business, Economics and Management 6, no. 3 (July 27, 2016): 971-978. Accessed May 19, 2024. http://www.scitecresearch.com/journals/index.php/jrbem/article/view/822.