Meyer, Alfred G.
Harvard University Press, 1954
Buku Teks
Dobbs-Higginson, Michael S.
Longman, 1993
Buku Teks
Meyer, Alfred G.
Random House, 1965
Buku Teks
Meyer, Harvey G.
Prentice-Hall, 1951
Buku Teks
Meyer, Robert G.
Allyn and Bacon, 1988
Buku Teks SO