Sharma, Keshav Study of a programme in classification of plant kingdom for high school students in relation to continuous and delayed schedules of reinforcement. - Himachal Pradesh University 1981 - 96p. + C D - 54 Subjects--Topical Terms: ACHARYACRITERION-REFERENCED TESTSPLANTS - CLASSIFICATION//BOTANY - CLASSIFICATIONPROGRAMMED INSTRUCTION - HIMACHAL PRADESH - SHIMLABOTANY - CLASSIFICATIONPLANT CLASSIFICATION//BOTANY - CLASSIFICATIONMASTERY TESTING//CRITERION-REFERENCED TESTSHIGH SCHOOL STUDENTS - HIMACHAL PRADESH - SHIMLA Dewey Class. No.: TS.0552