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Alfred A. Knoff, 1964
Buku Teks
Somerville, Rose M.
Prentice-Hall, 1972
Buku Teks
Demos, John
Oxford University Press, 1970
Buku Teks
Lantz, James E.
N.Y.Appleton-Century-Crofts, 1978
Buku Teks
Fakultas Psikologi Universitas Indonesia, 1993
UI - Skripsi (Membership)