Yuen, Yuet Leng
Dato seri yuen leng, 2011
Buku Teks
Downham, Jenny
David Flicking Books, 2007
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Time-Life Books, 1972
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Sahmland, Irmtraut
Tubingen Max Niemeyer Verlag 1990
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Yuen, Ren Chao
University of California Press, 1968
Buku Teks