Rahmiati, F. ., and A. Jelitalia. “Extending the Role of Technology Acceptance Model (TAM) With Perceived Risk and E-Customer Service”. Journal of Technology Management and Technopreneurship (JTMT), vol. 9, no. 1, June 2021, pp. 1-12, https://jtmt.utem.edu.my/jtmt/article/view/6034.