00315nam a2200121Ia 450000500170000000800410001704100080005808200160006610000210008224500430010326000380014630000090018420260720174545.0260720s2004    xx            000 0 und d  aeng  a311.22 SIDM  aSiddiqui, Akthar  aModels of teaching theory and research  aNew DelhibA P H Publishingc2004  a136p