Jaspan, M.A., author
The Australian National University, 1964
Buku Teks
Eilonghong Renmin Chubanshe, 1996
Buku Referensi
edited, Suman Gupta, David Johnson
Routledge , 2005
Buku Teks
Bonta, Juan Pablo, author
MIT Press, 1996
Buku Teks
Spreen, Hildegard L
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Buku Teks