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Buku Teks
Cobb, Nancy J., author
Mayfield Publishing Company , 2001
Buku Teks
Papalia, Diane E., author
McGraw-Hill, 2002
Buku Teks
Papalia, Diane E., author
Academic Internet Publishers, 2007
Buku Teks
Hurlock, Elizabeth Bergner, 1898-, author
McGraw-Hill Kogakusha, 1972
Buku Teks