TY - BOOK AU - GOEL, B . S . AU - MITTAL, S . K . TI - NUMERICAL ANALYSIS / U1 - 519.4 PY - 1985///-86 CY - MEERUT PB - PRAGATI PRAKASHAN KW - NUMERICAL ANALYSIS N1 - 5TH ED / 1989 ; 12TH ED / 1997 / viii , 518 P. ; 13TH ED / 1998 ER -