@book{6751,
	author = { Das, B.C. and Mukherjee, B.N.},
	title = {Integral Calculus including Differential Calculus/},
	publisher = {U.N.& Sons Private Ltd.},
	year = {c2019},
	address = {Kolkata:},
	edition = {60th ed},
	note = {Includes Index}
}