@book{4021,
	author = {Abdur Rahman, A.F.M. and Bhattacharjee, P.K.},
	title = {A Text Book on Co-ordinate Geometry :},
	publisher = {S. Chakaborty,},
	year = {c 2020.},
	address = {Dhaka :},
	edition = {10th ed.}
}