How, Heoy Geok, Development of a spark plug fuel injector for compressed natural gas direct injection in spark ignition engine / How Heoy Geok. - xxi, 125 pages : illustrations ; 30 cm. Thesis (Sarjana Sains) - Universiti Kebangsaan Malaysia, 2010. References : pages [108]-114. Subjects--Corporate Names: Universiti Kebangsaan Malaysia--Dissertations. Subjects--Topical Terms: Internal combustion engine.Spark plugs.Combustion engineering.Dissertations, Academic--Malaysia.Spark ignition engines.