by Tracy I. Storer ... [et al.]
McGraw-HIll, 1979
Buku Teks
Storer, Tracy I.
McGraw-Hill, 1957
Buku Teks
Shellhammer, H. S.
The National Press, 1965
Buku Teks
Tanner, James T.
Burgess Publishing, 1970
Buku Teks
Gordon, Malcolm S.
Macmillan, 1976
Buku Teks