APA Citation

Chai, C. Y. (2011). Digital security locking system – USB based GSM security system.

Chicago Style Citation

Chai, Chong Yi. Digital Security Locking System €� USB Based GSM Security System. 2011.

MLA Citation

Chai, Chong Yi. Digital Security Locking System €� USB Based GSM Security System. 2011.

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