00302nam a2200133Ia 4500020000900000082001100009100002900020245005700049250000600106260003300112300000800145500000900153650000600162  aNULL  a517.38  aRoy, J. Sinha/ Padhy. S. 0aA Course on Ordinary & Partial Differential Equation  a-  aN. DelhibKalyani Publishers  a459  a6474  a-