Ortega, V. O. L. (1999). Evaluation of furniture. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Ortega, Virgilyn Olivia L. "Evaluation of Furniture." Manila Bulletin 1999.
Lua MLA (9ú heag.)Ortega, Virgilyn Olivia L. "Evaluation of Furniture." Manila Bulletin, 1999.
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