Joven, G. P. (1998). Vitamin C: The latest in anti-aging therapy. Philippine Star.
Chicago-viite (17. p.)Joven, Ginggay P. "Vitamin C: The Latest in Anti-aging Therapy." Philippine Star 1998.
MLA-viite (9. p.)Joven, Ginggay P. "Vitamin C: The Latest in Anti-aging Therapy." Philippine Star, 1998.
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