Shahzad, R. and Naveenchandran, P. and Aziz, A.R.A. (2012) Characteristics of lean and stoichiometric combustion of compressed natural gas in a direct injection engine. Applied Mechanics and Materials, 110-11. pp. 357-369. ISSN 16609336

Naveenchandran, P. and Al-Khairi, N. and Shahzad, R. and Aziz, A.R.A. (2011) Effect of exhaust gas recirculation on the dual fuel combustion of gasoline and CNG by compression ignition. Journal of Applied Sciences, 11 (11). pp. 2030-2035. ISSN 18125654

Aziz, A.R.A. and Firmansyah and Shahzad, R. (2010) Combustion analysis of a cng direct injection spark ignition engine. International Journal of Automotive and Mechanical Engineering, 2 (1). pp. 157-170. ISSN 22298649