00278nam a2200121Ia 4500008004100000082000800041082001000049100002800059245002100087260001400108260002500122260000900147230118s9999||||xx |||||||||||||| ||und||  a516  bPIL/M  ac.p.janardhananbpillay 0amain mathematics  aottapalam  bajith book of centre  c1991