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Lua i Stíl Chicago (17ú heag.)Siriban-Manalang, Anna Bella D. "As Assessment Model to Characterize TQM Systems in Large Philippine Manufacturing Companies." Philippine Engineering Journal 2001.
Lua MLA (9ú heag.)Siriban-Manalang, Anna Bella D. "As Assessment Model to Characterize TQM Systems in Large Philippine Manufacturing Companies." Philippine Engineering Journal, 2001.
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