@book{607321,
	author = { Mustafa, Atta ul and Supervisor : Prof. Dr. Riaz Ahmed Mufti},
	title = {Acoustic Emission of Engine Valve Train /},
	publisher = {SMME- NUST; },
	year = {2023. },
	address = {Islamabad : },
	url = {http://10.250.8.41:8080/xmlui/handle/123456789/34903}
}