edited by Harold Leitenberg
Prentice-Hall, 1976
Buku Teks
edited by Samuel M. Turner, Karen S. Calhoun, Henry E. Adams
John Wiley & Sons, 1992
Buku Referensi
Mahoney, Michael J., author
Ballinger, 1974
Buku Teks
Watson, David L., author
Brooks/Cole , 1985
Buku Teks
Cambridge University Press, 2020
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