John F. Michell
Thames and Hudson, 1996
Buku Teks
Clarke, D. Waldo
Longmans, Green, 1950
Buku Teks
Siegel, Paul N.
University of Notre Dame Press, 1968
Buku Teks
Clemen, Wolfgang
Methuen, 1977
Buku Teks
edited by A.M. Eastman and G.B. Harrison
University of Michigan Press, 1964
Buku Teks