Bowra, C. M., author
Time-Life Books, 1965
Buku Teks
Cotterell, John, author
Lorenz Books, 2000
Buku Referensi
Kibble, T.W.B., author
Longman, 1985
Buku Teks
Kibble, T.W.B., author
Longman, 1996
Buku Teks
Jackson, John D., 1925-2016, author
John Wiley & Sons, 1975
Buku Teks