Handbook 1995
Queensland University of Technology
QUT Publications, 1994
 Buku Referensi
Handbook 1999
Queensland University of Technology
QUT Publications, 1999
 Buku Referensi
Leader's handbook
edited by Dor Sachetti
La Leche League International, 1998
 Buku Teks
Handbook of parenting
edited by Marc H. Bornstein
Lawrence Erlbaum associates, Publishers, 2002
 Buku Teks
Handbook 1999
Queensland University of Technology, 1998
 Buku Referensi
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