Joven, G. P. (1998). Vitamin C: The latest in anti-aging therapy. Philippine Star.
Cita Chicago (17th ed.)Joven, Ginggay P. "Vitamin C: The Latest in Anti-aging Therapy." Philippine Star 1998.
Cita MLA (9th ed.)Joven, Ginggay P. "Vitamin C: The Latest in Anti-aging Therapy." Philippine Star, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.