Addison-Wesley Publishing Company, Inc., 1963
Buku Teks
Khanapetov, M.
MIR Publisher, 1977
Buku Teks
Musolf, Lloyd D.
Harvard University Press , 1959
Buku Teks
Carrol, John M.
E.P. Dutton & Co., Inc., 1964
Buku Teks
Gunther, John, 1901-1970
Harper & Brothers, 1960
Buku Teks