APA (7th ed.) Citation

Chua, P. S. (2009). Stress-Echo. Malaya.

Chicago Style (17th ed.) Citation

Chua, Philip S. "Stress-Echo." Malaya 2009.

MLA (9th ed.) Citation

Chua, Philip S. "Stress-Echo." Malaya, 2009.

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