APA (7th ed.) Citation

Teoh, Goh,, A., & Ngo, ., DCL. (2004). An integrated dual factor authenticator based on the face data and tokenised random number.

Chicago Style (17th ed.) Citation

Teoh, A. Goh,, and Ngo, DCL. An Integrated Dual Factor Authenticator Based on the Face Data and Tokenised Random Number. 2004.

MLA (9th ed.) Citation

Teoh, et al. An Integrated Dual Factor Authenticator Based on the Face Data and Tokenised Random Number. 2004.

Warning: These citations may not always be 100% accurate.