University Tutorial Press , 1977
Buku Teks
Dunham, Jewett, author
Burgess, 1966
Buku Teks
by Cleveland P. Hickman, Jr. [and others]
McGraw-Hill, 2012
Buku Teks
Cleveland P. Hickman [and others]
McGraw-Hill, 2015
Buku Teks
Pandey, B.N., author
Tata McGraw-Hill, 2012
Buku Teks