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

oleh Rahmansyah, Abdul; Institut Teknologi Medan , zulfikar, zulfikar; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area , umroh, bobby; 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 Zulfikar, Zulfikar; 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 , Kurniawan, Fadly A; Mechanical Engineering Dept., Univ. Harapan, Indonesia

oleh Syam, Amir; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area , zulfikar, zulfikar; Mechanical Engineering Dept., Engineering Faculty, University of Medan Area , Hutasuhut, Muhammad Idris; Mechanical Engineering Dept., Univ. Harapan, Indonesia