Liebert, Robert M., 1942-, author
Developmental psychology
Prentice-Hall, 1986
 Buku Teks
Hurlock, Elizabeth Bergner, 1898-, author
Developmental psychology
Tata McGraw-Hill, 1979
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Upton, Penney, author
Developmental psychology
Learning Matters, 2011
 Buku Teks
Novak, David, author
Developmental mathematics
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 Buku Teks
Developmental psychology
American Psychological Assosiation, 2001
 Majalah, Jurnal, Buletin
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