MANKIDY JACOB. (1989). QUALITY CIRCLES: CONCEPT,RATIMALE AND METHODOLOGY. HIMALAYA PUBLISHING HOUSE.
Lua i Stíl Chicago (17ú heag.)MANKIDY JACOB. QUALITY CIRCLES: CONCEPT,RATIMALE AND METHODOLOGY. BOMBAY: HIMALAYA PUBLISHING HOUSE, 1989.
Lua MLA (9ú heag.)MANKIDY JACOB. QUALITY CIRCLES: CONCEPT,RATIMALE AND METHODOLOGY. HIMALAYA PUBLISHING HOUSE, 1989.
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