Africa and change
edited by Colin M. Turnbull
Kingsport Press, 1973
 Buku Teks
Michael, Stephen R., author
Techniques of organizational change
McGraw-Hill, 1981
 Buku Teks
The Power to change: issues for the innovative educator
edited by Carmen M. Culver
McGraw-Hill, 1973
 Buku Teks
Busia,K.A
The challenge of Africa / K. A. Busia
United States of America, 1962
 Buku Teks
Kimble, George H. T.
Tropical Africa volume 2 / George H.T. Kimble
The Twentieth Century Fund, 1960
 Buku Teks
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