Mathematics 92 Statistics 76 Library classification schemes 61 Computer science 59 Social sciences 51 Biotechnology 50 Philosophy 50 Engineering 49 Biochemistry 46 Electronics 44 Physics 43 Econometrics 37 Economics 36 Microbiology 36 methods 36 Education 35 Programming languages-Basic 34 Bioinformatics 33 BASIC (Computer program language) 30 Management 30 Research 30 Computer 28 Genetics 27 Molecular biology 27 Chemistry 26 Data processing 26 Psychology 26 Quantum theory 24 Sociology 24 Algebra 23