1. College of Natural Science, Can Tho University, Can Tho City, Vietnam
2. Faculty of Engineering, Van Lang University, Ho Chi Minh City, Vietnam
3. University of Science, Ho Chi Minh City, Vietnam
4. Vietnam National University, Ho Chi Minh City, Vietnam
5. Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
6. Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi Minh City, Vietnam