1. Department
of Chemistry, Faculty of Mathematics and Natural Sciences, University of Indonesia, Kampus UI Depok, 16424 Depok, Indonesia
2. Department
of Petroleum Engineering, University of Louisiana at Lafayette, Lafayette, Louisiana 70504, United States
3. Petroleum
Recovery Research Center (PRRC), New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, New Mexico 87801, United States