Block, Stanley B., author
Canfield Press, 1973
Buku Teks
Hunt, Pearson, author
Richard D. Irwin, [Date of publication not identified]
Buku Teks
Dauten, Carl Anton, 1913-, author
Prentice-Hall, 1948
Buku Teks
Hunt, Pearson, author
Richard D. Irwin, 1951
Buku Teks
Masson, Robert L., author
McGraw-Hill, 1935
Buku Teks