Coxeter, H. S. M.
John Wiley & Sons, 1980
Buku Teks SO
M. H. Mitarwan
[publisher not identified], [date of publication not identified]
Buku Teks SO
Bowen, H.J.M.
Academic Press, 1979
Buku Teks
Matthews, M.H.
Barnes & Noble Books, 1992
Buku Teks SO
M. Samsul
Liberty , 1988
Buku Teks SO