by Economic and Socila Commission for Asia and the Pacific United Nations
United Nations, 1986
Buku Teks
Suyitno
Kanisius, 2004
Buku Teks
Wang, Qicheng
China Intercontinental Press, 2009
Buku Teks
Wang, Qicheng
China Intercontinental Press, 2010
Buku Teks
Miller, Steve
Springer, 2012
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