Japanese Journal of Farm Work Research
Online ISSN : 1883-2261
Print ISSN : 0389-1763
ISSN-L : 0389-1763
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Development of the Programs for Time Measurement of Farm Work Using Mobile Personal Computer
Koichi HIRAIZUMI
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2014 Volume 49 Issue 3 Pages 105-111

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© 2014 Japanese Society of Farm Work Research
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