APA (7th ed.) Citation

Siti Suahaila. (2008). Speed of light. Express Education.

Chicago Style (17th ed.) Citation

Siti Suahaila. Speed of Light. Selangor: Express Education, 2008.

MLA (9th ed.) Citation

Siti Suahaila. Speed of Light. Express Education, 2008.

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