Aihe-ehdotuksia
Aihe-ehdotuksia
Biochemical engineering
History of engineering & technology
Manufacturing industries
Energy industries & utilities
3
Management of specific areas
3
Pharmaceutical industries
3
Coins, banknotes, medals, seals (numismatics)
2
Information technology industries
2
Business strategy
1
Engineering: general
1
Library & information sciences
1
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1
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2
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3
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4