Lauer, Robert H.
Perspectives on social change/ Robert H. Lauer
Allyn and Bacon, 1982
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Cooper, Robert L.
Language planning and social change
Cambridge University Press, 1989
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Zaltman, Gerald
Strategies for planned change
John Wiley & Sons, 1977
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Michael, Donald N.
On Learning to plan-and planning to learn
Jossey-Bass, 1985
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Moore, Wilbert Ellis
Social change
Prentice-Hall, 1963
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