Cooper, Robert L., author
Language planning and social change
Cambridge University Press, 1989
 Buku Teks
Morris, Robert, author
Feasible planning for social change / by Robert Morris and Robert H. Binstock ; with the collaboration of Martin Rein
Columbia University Press , 1966
 Buku Teks
Jones, Mari C, author
Exploring language change
Routledge , 2006
 Buku Teks
Moore, Wilbert E. (Wilbert Ellis), author
Social change
Prentice-Hall, 1963
 Buku Teks
Social change
edited by Robert A. Nisbet
Blackwell, 1972
 Buku Teks
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