Optimization of gasoline engine to maximize brake power and minimize brake specific fuel consumption with artificial neural network and Killer Whale algorithm - Biyanto, Totok R.; Auliya, Muhammad F.; Noriyati, Ronny D.; Cordova, Hendra; Martadji; Putra, Hafisyah R.; Bethiana, Titania N.; Mabruri, Mohammad O. (AIP Conference Proceedings, 2019)