Urlanda, R. V. (2004). Proper nutrition: Key to disease prevention. Philippine Panorama.
Lua i Stíl Chicago (17ú heag.)Urlanda, Randy V. "Proper Nutrition: Key to Disease Prevention." Philippine Panorama 2004.
Lua MLA (9ú heag.)Urlanda, Randy V. "Proper Nutrition: Key to Disease Prevention." Philippine Panorama, 2004.
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