Alford, Leon Pratt
Ronald Press, 1940
Buku Teks
by Lawrence L. Bethel ... [et al.]
McGraw-Hill, 1962
Buku Teks
Lawrence L. Bethel ... [et al.]
McGraw-Hill, 1945
Buku Teks
Lundy, James L.
Eurasia Publishing House, 1968
Buku Teks
by James L. Riggs ... [et al.]
McGraw-Hill, 1979
Buku Teks