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donald l halsted
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Cilt sonuçları
Discipline, causes and remedies of problem behaviors in school
Donald L. Halsted · Essence Publications
49 sayfa · 1976
Behavior modification / Classroom management / School discipline
Report on the Flint Youth study
Jerry Alan Winter, Donald L. Halsted, University of Michigan. Institute for Social Research · Institute for Social Research
Sayfa sayısı yok · 1960
Problem children / Youth