Donaldson, Wayne
Houghton Miffiln, 1969
Buku Teks
Larsen, Randy J., author
McGraw-Hill, 2018
Buku Teks
Larsen, Randy J., author
McGraw-Hill, 2005
Buku Teks
Larsen, Randy J., author
McGraw-Hill, 2008
Buku Teks
DiFonzo, Nicholas, author
APA, 2007
Buku Teks