Ferguson, Wallace K.
Houghton Mifflin , 1958
Buku Teks
Naidis, Mark
Dryden Press, 1972
Buku Teks
Croiset, Maurice
F. S. Crofts, 1951
Buku Teks
Li, Xiaodong
China Renmin University Press, 2015
eBooks
editors, A. Barav, D.A. Wyatt, ; asisten editor, Joan Wyatt
Clarendon Press, 1989
Buku Referensi