Henry Buller, Keith Hoggart
Taylor and Francis, 2018
Buku Teks SO
edited by Philip Lowe, Terry Marsden, Sarah Whatmore
David Fulton, 1990
Buku Teks SO
Carlson, John E.
McGraw-Hill, 1981
Buku Teks SO
Lassey, William R.
McGraw-Hill, 1977
Buku Teks SO
Winter, Michael
Routledge, 1996
Buku Teks