6 1 20 the leadership difference PETERS, TOM Primary Author Austin, Nancy Additional Author mixed material 0002175290 london Collins 1985 Walker, Gordon Primary Author mixed material 0072345632 New York McGraw-Hill Book Company 2004 KAST, FREMONT E. Additional Author Johnson, Richard A. Primary Author Rosenzweig, James E. Editor mixed material 0070326347 Tokyo McGRAW-HILL KOGAKUSHA 1973 DRUCKER, PETER F. Primary Author mixed material 0887306144 New York Harper & Row. Publishers 1986 %5C%5CServer%5CSS%5CMfR.jpg Essential Advice for Aspiring Executives HOFFMAN, HARRY Primary Author mixed material 0836267648 Kansas City Andrews McMeel Publishing 1998 %5C%5CServer%5CSS%5CTPM.jpg GABARRO, JOHN J. Primary Author mixed material 0875851376 America Harvard Business School Press 1987 %5C%5CServer%5CCover+Buku%5C2006-02-20%5CDTC.JPG