1. Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Depok, Jawa Barat, Indonesia
2. Department of Industrial Engineering, Faculty of Engineering, Bina Nusantara University, Jakarta, Indonesia
3. School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Penang, Malaysia
4. School of Polymer Science and Engineering, Chonnam National University, Gwangju, Republic of Korea