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Oxford University Press, 1979
Buku Teks
edited by Willy Sellekaerts
Macmillan, 1974
Buku Teks
Mattalitti, Sitti Fatimah U., author
Fakultas Psikologi Universitas Indonesia, 2006
UI - Tesis (Membership)
Rianda Dirkareshza, author
Universitas Indonesia, 2018
UI - Tesis (Membership)
Walinsky, Louis J.
McGraw-Hill , 1963
Buku Teks