00382nam a2200109Ia 4500082001700000245003800017100005400055942000700109008004100116999001900157952009600176  aR 371.2 EFFE 0aEffective educational management   a VAN DER WESTHUIZEN, P C (Philippus Cornelius)     cBK210817s9999    xx            000 0 und d  c183764d183763  00104070aBETHLbBETHLd2021-08-18g109.95l0p33228012575286r2021-08-18w2021-08-18yBK