edited by Garth J.O. Fletcher and Margaret S. Clark
Blackwell, 2003
Buku Teks SO
edited by Dawn O.Braithwaite; Julia T. Wood
Wadsworth, 1999
Buku Teks SO
Hocker, Joyce L.
Win C. Brown, 1944
Buku Teks SO
Hartley, Peter, 1946-
Roudledge, 1993
Buku Teks SO
Condon, John C.
Macmillan, 1977
Buku Teks