by Patrick M. Malone, Kristen W. Mosdell, Karen L. Kier and John Stanovich
McGraw-Hill, 2001
Buku Teks SO
by Volker Schulz ... [et al.]
Springer, 2004
Buku Teks SO
Wilson, Billie Ann
Prentice-Hall, 2003
Buku Referensi
Deglin, Judith Hopfer, 1950-
F.A. Davis, 1997
Buku Referensi
Deglin, Judith Hopfer, 1950-
F.A. Davis Company, 1997
Buku Referensi