Baradat, Leon P.
Prentice-Hall, 1991
Buku Teks
Grimes, Alan P.
Oxford University Press , 1959
Buku Teks
Sargent, Lyman Tower
Wadsorth Thompson Learning, 2003
Buku Teks
by Robert Eccleshall ... [et al]
Routledge, 1994
Buku Teks
Baradat, Leon P.
[publisher not identified], [date of publication not identified]
Buku Teks SO