APA (7th ed.) Citation
Zhang, J., & et al. Implementing portfolios using TK20: An educational assessment system.
Chicago Style (17th ed.) Citation
Zhang, J., and et al. Implementing Portfolios Using TK20: An Educational Assessment System.
MLA (9th ed.) Citation
Zhang, J., and et al. Implementing Portfolios Using TK20: An Educational Assessment System.
Warning: These citations may not always be 100% accurate.