Baum, Warren C., author
Oxford University Press , 1985
Buku Teks
Cuca, Roberto, author
John Hopkins University Press, 1977
Buku Teks
Reynolds, Russell S., Jr., author
McGraw-Hill, 2012
Buku Teks
Bello, Ignacio, author
McGraw-Hill, 2006
Buku Teks
Macpherson, C.B., author
Oxford University Press, 1978
Buku Teks