tietue 191421 ei ole valintakorissa (2)
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SCIMA valintakori viitteet

lkm: 2
1.
LP applications in Scottish agriculture.
Journal of the Operational Research Society
1980 : MAY, VOL. 31:5, p. 387-391
 1980 Balm, I. R.
2.
The basic form of movement of agriculture labor of China (original in Chinese)
Hebei Academic Journal (c)
1995 : 1, p.16
 1995 Chen, Wenke
SCIMA