Simon, W.
A Beginners' Chinese-English dictionary of the national language (Gwoyeu)
Lund Humphries & Co, 1947
Buku Referensi
Learn to speak Chinese (1A, 1B)
The Commercial Press,
Multimedia
Learn to speak Chinese (2A, 2B)
The Commercial Press (HK) Ltd.,
Multimedia
Learn to speak Chinese (1A, 1B)
The Commercial Press,
Multimedia
Karlgren, Bernhard
The Chinese language: an essay on its nature and history
Ronald Press, 1949
Buku Teks SO