Tribological performance of ficus carica oil using tertiary-butylhydroquinone and ethylene vinyl-acetate additive / by Audu Ibrahim Ali, 1979-, author 655433, Mohd. Kameil Abdul Hamid, supervisor 614804, Mohd. Azman Abas, 1978-, supervisor 605729, Zulhanafi Paiman, 1985-, supervisor 606587, Fakulti Kejuruteraan Mekanikal 8081