Loewen,J The power of Strategy: A practical Guide for South African Managers/ J.Loewen, Clem Sunter and Tamsin Shelton. - Sandton: Zebra Press, 1997. - 230 pages.: ill.; 22cm. Think Results, Think Smart, Think Big, Think Competitive Advantage, Think add Value, Think Positioning, Think Performance, Think Vision and Think Action. ISBN: 9781868720767 Standard No.: LC Class. No.: HD 30.28 Loe 1997