00398nam a2200169Ia 4500003000400000005001700004008004100021020001900062040000700081041000800088082001500096100002500111245003200136260003700168300000900205650001400214OSt20250814113900.0250729s2006    xx            000 0 und d  a978-8120717473  cAL  aeng  a301.7 MATA  aSindhu kulbeer singh  aThe teaching of mathematics  aAgrabVinod Piustak Mandirc2006  a519p  aEducation