Yuen, Ren Chao, author
Harvard University Press, 1962
Buku Referensi
Halliday, M.A.K., author
Oxford University Press, 1989
Buku Teks
Simon, W., author
Lund Humphries & Co, 1947
Buku Referensi
Mawson, C. O. Sylvester, author
Garden City Publishing Company, 1940
Buku Referensi
William Allan Neilson, editor in chief; Thomas A. Knott, general editor; Paul W. Carhart, managing editor
Springfield, G & C Merriam Co.
Buku Referensi