Babu, C. N. S. Ramnath, and S. Sundar. “Identifying the Switching Determinants of Mobile Enterprise Customers : The Perspective of Pull - Push - Mooring Model and Mobile Number Portability”. Indian Journal of Marketing, vol. 49, no. 6, June 2019, pp. 21-34, doi:10.17010/ijom/2019/v49/i6/144697.