Daniel, Wayne W., author
Houghton Miffiln, 1989
Buku Teks
Shao, Stephen P., author
Charles E. Merrill, 1976
Buku Teks
Allen, R.G.D., author
Hutchinson University Library, 1972
Buku Teks
Runyon, Richard P., author
Ill. Richard D. Irwin , 1982
Buku Teks
Summer, George W.
Wadsworth, 1985
Buku Teks