NAG A. (1993). MANAGEMENT REFRESHER: A READER FOR EVERY MANAGER. VIKAS PUBLISHING HOUSE PVT. LTD.
Lua i Stíl Chicago (17ú heag.)NAG A. MANAGEMENT REFRESHER: A READER FOR EVERY MANAGER. NEW DELHI: VIKAS PUBLISHING HOUSE PVT. LTD, 1993.
Lua MLA (9ú heag.)NAG A. MANAGEMENT REFRESHER: A READER FOR EVERY MANAGER. VIKAS PUBLISHING HOUSE PVT. LTD, 1993.
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