Jhong, Jianhu
Sweet and Maxwell Asia, 1998
Buku Teks
Potter, Pitman B.
University Of Washington Press, 1992
Buku Teks
Lewin, Pauline
Frederick A. Praeger, 1967
Buku Teks
Paolo Davide Farah, Elena Cima, editors
Routledge, 2016
Buku Teks
Heidemann, Maren
Springer, 2012
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