oleh Darianto, Darianto; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area

oleh Darianto, Darianto; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area

oleh Amrinsyah, Amrinsyah; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area , syam, amir; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area , Darianto, Darianto; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area , zulfikar, zulfikar; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area

oleh Darianto, Darianto; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area , Umroh, Bobby; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area , Amrinsyah, Amrinsyah; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area , zulfikar, zulfikar; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area

oleh Harto, Budi; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area , Umroh, Bobby; Mechanical Engineering Dept., STT Sinar Husni, Indonesia , Darianto, Darianto; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area