1. Chemical Engineering Department, Faculty of Engineering Universitas Jenderal Achmad Yani Cimahi Indonesia
2. Chemical Engineering Department Universitas Diponegoro Semarang Indonesia
3. Department of Chemical Engineering Universitas Surabaya Surabaya Indonesia
4. Department of Chemical Engineering Institut Teknologi Bandung Bandung Indonesia
5. Research Center for Nanosciences and Nanotechnology Institut Teknologi Bandung Bandung Indonesia