MITTAL R K. (1999). HANDBOOK OF EFFECTIVE QUALITY MANAGEMENT. RAJAT PUBLICATIONS.
Lua i Stíl Chicago (17ú heag.)MITTAL R K. HANDBOOK OF EFFECTIVE QUALITY MANAGEMENT. NEW DELHI: RAJAT PUBLICATIONS, 1999.
Lua MLA (9ú heag.)MITTAL R K. HANDBOOK OF EFFECTIVE QUALITY MANAGEMENT. RAJAT PUBLICATIONS, 1999.
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