oleh Nanda, Is Prima; Department of Mechanical Engineering, Faculty of Engineering Universitas Andalas, Padang, 25163 Sumatera Barat, Indonesia , Ali, Zahran; Department of Material, Manufacturing and Industry, Faculty of Mechanical Engineering Universiti Teknologi Malaysia, 81310 Skudai Johor, Malaysia , Idris, Mohd. Hasbullah; Department of Material, Manufacturing and Industry, Faculty of Mechanical Engineering Universiti Teknologi Malaysia, 81310 Skudai Johor, Malaysia , Arafat, Andril; Department of Material, Manufacturing and Industry, Faculty of Mechanical Engineering Universiti Teknologi Malaysia, 81310 Skudai Johor, Malaysia , Pratoto, Adjar; Department of Mechanical Engineering, Faculty of Engineering Universitas Andalas, Padang, 25163 Sumatera Barat, Indonesia

oleh Nanda, Is Prima; Department of Mechanical Engineering, Faculty of Engineering, Universitas Andalas, Padang 25163, Sumatera Barat, Indonesia , Jahare, Muhammad Hafiz; Faculty of Mechanical, Universiti Teknologi Malaysia, UTM Skudai, 81310 Johor Bahru, Johor, Malaysia. , Idris, Mohd Hasbullah; Faculty of Mechanical, Universiti Teknologi Malaysia, UTM Skudai, 81310 Johor Bahru, Johor, Malaysia. , Hassim, Mohd Hazwan; Faculty of Mechanical, Universiti Teknologi Malaysia, UTM Skudai, 81310 Johor Bahru, Johor, Malaysia. , Arafat, Andril; Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang, Padang 25131, Sumatera Barat, Indonesia

oleh Nanda, Is Prima; Department of Mechanical Engineering, Faculty of Engineering, Universitas Andalas, Padang 25163 Sumatera Barat, Indonesia. , Hassim, Mohd Hazwan; Faculty of Mechanical, Universiti Teknologi Malaysia, UTM Skudai, 81310 Johor Bahru, Johor. Malaysia , Idris, Mohd Hasbullah; Faculty of Mechanical, Universiti Teknologi Malaysia, UTM Skudai, 81310 Johor Bahru, Johor. Malaysia , Jahare, Muhammad Hafiz; Faculty of Mechanical, Universiti Teknologi Malaysia, UTM Skudai, 81310 Johor Bahru, Johor. Malaysia , Arafat, Andril; Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang, Padang 25131, Sumatera Barat, Indonesia