Asri, S., Othman, M. F., Abdullah, A., Abdullah, Z. and Azmi, Z. (2019) “Analysis of Organic Germanium Ge-132 as Cetane Improver in Diesel Combustion Process”, International Journal of Automotive and Mechanical Engineering, 16(1), pp. 6134–6145. doi: 10.15282/ijame.16.1.2019.4.0466.