@book{2434,
	author = {Awang Idris},
	title = {Effect of compressed natural gas on performance and emission of a 4-stroke spark ignition engine /},
	publisher = {UMP,},
	year = {2009},
	address = {Kuantan, Pahang :},
	url = {http://ecollib.ump.edu.my/3852/}
}