APA (7th ed.) Citation

A.M., S., H., H., & K., N. (2009). The effect of echo delay on voice quality in VoIP network.

Chicago Style (17th ed.) Citation

A.M., Said, Hasbullah H., and Nisar K. The Effect of Echo Delay on Voice Quality in VoIP Network. 2009.

MLA (9th ed.) Citation

A.M., Said, et al. The Effect of Echo Delay on Voice Quality in VoIP Network. 2009.