Asri, S., Othman, M. F., Abdullah, A., Abdullah, Z., & 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), 6134–6145. https://doi.org/10.15282/ijame.16.1.2019.4.0466