Bendix, Reinhard, author
John Wiley & Sons, 1956
Buku Teks
Brown, Wilfred
Heinemann, 1971
Buku Teks
Dalton, Melville
John Wiley & Sons,Inc. , 1959
Buku Teks
Hicks, Herbert G., author
McGraw-Hill Kogakusha, 1974
Buku Teks
Bendix, Reinhard, author
University of California Press, 1974
Buku Teks