Das, B. C. Differential calculus / B. C. Das. - Rep de. - Calcutta: Dwijendranath Dhub, c2023. - xvi, 475p.: ill.;, figs.; 18 cm. Dept. of Civil. ISBN: 8185624850 Subjects--Topical Terms: Successive differentiation Dewey Class. No.: 515.33 / DAD