@book{57638,
	author = {Sarkar Swapan},
	title = {A Text Book Of Discrete Mathematics},
	publisher = {New Delhi:S Chand, Arishta},
	year = {31-10-23, New Delhi:S Chand, Arishta},
	address = {New Delhi:S Chand, Arishta},
	edition = {9th}
}