downloadable electronic publications in the nature of courses of instruction at the primary, secondary, college, professional, and home-schooling levels featuring a variety of academic subjects; pre-recorded CD-ROMs, videocassettes, audiocassettes, and computer educational software featuring courses of instruction at the primary, secondary, professional, and home-schooling levels in a variety of academic subjects

'academ':26,58 'audiocassett':35 'cd':32 'cd-rom':31 'colleg':15 'comput':37 'cours':8,41 'download':1 'educ':38 'electron':2 'featur':22,40 'home':19,51 'home-school':18,50 'instruct':10,43 'level':21,53 'natur':6 'pre':29 'pre-record':28 'primari':13,46 'profession':16,48 'public':3 'record':30 'rom':33 'school':20,52 'secondari':14,47 'softwar':39 'subject':27,59 'varieti':24,56 'videocassett':34

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