DR RAGEEB USMAN, . (2021). A TEXT BOOK OF QUALITY MANAGEMENT SYSTEM ( DR RAGEEB USMAN). NEW YORK: JOHN WILLY & SONS NEW YORK.
DR RAGEEB USMAN, . 2021. A TEXT BOOK OF QUALITY MANAGEMENT SYSTEM ( DR RAGEEB USMAN). NEW YORK: JOHN WILLY & SONS NEW YORK.
DR RAGEEB USMAN, . A TEXT BOOK OF QUALITY MANAGEMENT SYSTEM ( DR RAGEEB USMAN). NEW YORK: JOHN WILLY & SONS NEW YORK. 2021.
