search query: @author Chang, Yaping / total: 2
references: 1-2 / 2
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1.
China Textile (c)
1999 : 8, p.21-23
1999 Chang, Yaping
Yan, Jun
2.
Commercial Economy and Management (c)
1998 : 4, p.50-53
1998 Chang, Yaping
Yan, Jun
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