Mund, Vernon A., author
Appleton-Century-Crofts, 1971
Buku Teks
Lundy, James L., author
Eurasia Publishing House, 1968
Buku Teks
Bethel, Lawrence L., author
McGraw-Hill Kogakusha, 1971
Buku Teks
Spriegel, William Robert, 1893-1972, author
Charles & Tuttle, 1958
Buku Teks
Roscoe, Edwin Scott, author
Richard D. Irwin, 1955
Buku Teks