Lust, Barbara, author
Cambridge University Press, 2006
Buku Teks
Gesell, Arnold, author
Harper & Row, 1949
Buku Teks
Hurlock, Elizabeth Bergner, 1898-, author
McGraw-Hill, 1956
Buku Teks
Hurlock, Elizabeth Bergner, 1898-, author
Tata McGraw-Hill, 1994
Buku Teks
Breckenridge, Marian E.
W.B. Saunders, 1949
Buku Teks