St Louis : Mosby , 2001
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G.S. Diponolo
Balai Pustaka, 1975
Buku Teks
Purcell, Edwin J. (Edwin Joseph), 1901-, author
Erlangga, 2004
Buku Teks
Hurlock, Elizabeth Bergner, 1898-, author
Jakarta, 1993
Buku Teks
Sears, David O., author
Erlangga, 1991
Buku Teks