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