edited by Adrian Kear and Deborah Lynn Steinberg
Routledge, 1999
Buku Teks
edited by Adrian Kear, Deborah Lynn Steinberg
Routledge, 1999
Buku Teks SO
edited by Richard Allen
Routledge, 2000
Buku Teks SO
Simpson, W.O.
Stanley Thornes, 1986
Buku Teks SO
Plumb, John Harold, 1911-
Penguin Books , 1951
Buku Teks SO