Pengaruh penambahan katalis terhadap kinerja mesin otto berbahan bakar premium = The influence of catalyst addition on the performance of otto engine

Pengaruh penambahan katalis terhadap kinerja mesin otto berbahan bakar Pertamax = The catalyst effect on otto engine performance with Pertamax fuel

Gas Turbines and propulsive systems

Perancangan dan Pengembangan Connecting Rod dan Crankshaft Mesin Otto Satu Silinder Empat Langkah Berkapasitas 65cc = Design and Development Connecting Rod and Crankshaft of Four Stroke Internal Combustion Engine with 65cc Capacity

Aplikasi penambahan gas hidrogen pada motor bakar 4 langkah disertai pengecilan pilot jet dengan melakukan uji jalan kendaraan berbahan bakar pertamax = Appliacation adding the hydrogen gas to 4 stroke internal combustion engine and reduction of pilot jet size with the road test and pertamax fuel