00402nam a2200145Ia 450000500170000000800410001702000180005804100080007608200150008410000190009924500240011826000450014230000110018765000580019820191121151417.0190710s9999    xx            000 0 und d  a81-7117-052-8  aeng  a371.3 B464  aBhardwaj, K. S 0aHumour in classroom  aNew Delhib: Omsons Publications, c1988  a150p.   aHumour material a| Education a| Humour on learning