Williams, Basil, author
Oxford University, 1945
Buku Klasik
N. St. (Nur Sutan) Iskandar, author
Balai Pustaka, 2018
Buku Teks
Young, Robert, 1950-, author
John Wiley & Sons, 2015
Buku Teks
Williamson, J.A.
Macmillan, 1965
Buku Teks
Todorova, Elissaveta
Sofia press, 1987
Buku Teks