Mohamed Ariffin, Nur Aisya Affrina, et al. “TRIBOLOGICAL PERFORMANCE OF PERFLUOROPOLYETHER (PFPE)-BASED GREASE FOR POTENTIAL APPLICATION IN AUTOMOTIVE BEARINGS”. Journal of Transport System Engineering, vol. 10, no. 2, Oct. 2023, pp. 60-65, doi:10.11113/jtse.v10.197.