• 15 Technology
• 11 Engineering
• 8 Home economics
• 7 Health
• 6 Food handling
• 6 Food service
• 6 Safety measures
• 5 Energy facilities
• 5 Food
• 5 Food industry and trade
• 5 Food supply
• 5 History
• 5 Industries
• 5 Nutrition
• 5 Power resources
• 5 Power supply
• 5 Technological innovations
• 5 Transportation
• 4 Civil engineering
• 4 Mechanical engineering
• 3 Building
• 3 Construction industry
• 3 Manufacturing processes
• 3 Materials
• 2 Architecture

• 29 Films Media Group
• 29 Infobase

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