Waluyo, T., and Sutarman. “Comparative Analysis of the Performance of Single Sign-On Authentication Systems With OpenID and OAuth Protocols: Application of Single Sign-On (SSO) in Information Systems at the University of Technology Yogyakarta”. International Journal of Computer and Information Technology(2279-0764), vol. 11, no. 3, Aug. 2022, doi:10.24203/ijcit.v11i3.277.