00313nam a2200133Ia 4500008004100000100001600041245002300057250000600080260005000086300000800136650001300144942000700157999001500164190216s9999||||xx |||||||||||||| ||und||  aDr.C.Yakoob 0aOperation Research  aI  bCalicut University Central Co-Operativec2004  a156  aCommerce  cBK  c8134d8134