Lumb, Andrew B.
Elsevier, 2017
Buku Teks SO
West, John B. (John Burnard)
William Wilkins, 1990
Buku Teks SO
Wright, Samson
Oxford University Press, 1928
Buku Referensi
Wright, Samson
Oxford University Press, 1940
Buku Referensi
Wright, Samson
Oxford University Press, 1931
Buku Referensi