Questionnaires Social surveys 3 Social sciences 2 Agricultural entomology 1 Biological Control 1 Biological control agents 1 Biological pest control agents 1 Cognition 1 Development 1 Health Status Indicators 1 Health Surveys 1 Health surveys 1 Information and Documentation 1 Interviewing 1 Methodology 1 Microbial pesticides 1 Natural enemies 1 Natural pesticides 1 Pathogens 1 Pesticides and Drugs; Chemistry and Formulation, (New March 2000) 1 Psychology 1 R (Computer program language) 1 Research 1 Sampling (Statistics) 1 Surveys 1