APA (7th ed.) Citation

Cheng, K. L. (2013). GSM based home security system.

Chicago Style (17th ed.) Citation

Cheng, Kar Lock. GSM Based Home Security System. 2013.

MLA (8th ed.) Citation

Cheng, Kar Lock. GSM Based Home Security System. 2013.

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