Novak, David
Developmental mathematics
D.C. Health , 1989
Buku Teks
Gilbert, Scott F.
Developmental biology
Sinauer Associattes, 2000
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Muller, Werner A.
Developmental biology
Springer, 1997
Buku Teks
Gilbert, Scott F.
Developmental biology
Sinauer Associates, 1994
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Strommen, Ellen A.
Developmental psychology
Dorsey Press, 1983
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