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SCIMA valintakori viitteet

lkm: 2
1.
People, production and prosperity.
Management Services (Enfield)
1980 : JUL, VOL. 24:7, p. 4-8, 10
 1980 Adams, K.
2.
The impact of environmental protection on economic and trade development (original in Chinese)
Intertrade (c)
1995 : 6, p. 9-11
 1995 Jin, Zhenglin
SCIMA