Recorded computer software for course instruction at the college, university and preuniversity levels in the fields of mathematics, history, literature, data analysis, economics, and business management; Recorded computer software for university level course instruction provided to high school and secondary school students in the fields of mathematics, history, literature, data analysis, economics, and business management

'analysi':22,51 'busi':25,54 'colleg':9 'comput':2,28 'cours':5,33 'data':21,50 'econom':23,52 'field':16,45 'high':37 'histori':19,48 'instruct':6,34 'level':13,32 'literatur':20,49 'manag':26,55 'mathemat':18,47 'preunivers':12 'provid':35 'record':1,27 'school':38,41 'secondari':40 'softwar':3,29 'student':42 'univers':10,31

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