Agronomy 26 Pests 23 Safety measures 23 Common weeds 22 Dissertations, Academic (Ph.D) 20 Thesis (Ph.D)-Education 18 R (Computer program language) 15 Packaging 14 Python (Computer program language) 10 Microelectronic packaging 8 Multimedia systems in education 8 Soil Science and Agricultural Chemistry 8 Agriculture 7 Children 7 Food 7 Mathematics 7 Mentally retarded 7 Processing Technology 7 Computer graphics 6 Data mining 6 MATHEMATICS / Probability & Statistics / General 6 Nanotechnology 6 Agricultural Extension 5 American literature 5 Data processing 5 Dissertations, Academic(Ph.D) 5 Food packaging 5 Marketing 5 Social sciences 5 Food science 4