Cornell University, 1956
Buku Referensi
Hussein, Ismail, author
Dewan Bahasa dan Pustaka, 1974
Buku Referensi
Kapfer, Mirriam B.
Educational Technology Publication, 1972
Buku Teks
Yang, Paul Fu-mien
Chinese University Press, 1981
Buku Referensi
Stephenson, Mary Sue
The Scarecrow Press, 1990
Buku Referensi