Hoebel, E. Adamson, author
McGraw-Hill, 1979
Buku Teks
Alland, Alexander
John Wiley & Sons,Inc., 1980
Buku Teks
Kottak, Conrad Phillip, author
McGraw-Hill Education, 2019
Buku Teks
Firth, Raymond, author
Thomas Nelson and Sons, 1945
Buku Teks
Stevenson, Leslie, author
Oxford University Press, 1974
Buku Teks