Beltran, G. C. P. (1998). Stress and how it affects the skin [series]. Philippine Star.
Lua i Stíl Chicago (17ú heag.)Beltran, Grace Carole P. "Stress and How It Affects the Skin [series]." Philippine Star 1998.
Lua MLA (9ú heag.)Beltran, Grace Carole P. "Stress and How It Affects the Skin [series]." Philippine Star, 1998.
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