1. Universiti Teknologi MARA,College of Engineering,Shah Alam,Malaysia
2. Microwave Research Institute Universiti Teknologi MARA,Shah Alam,Malaysia
3. Cuckoo International (Mal) Sdn. Bhd.,Shah Alam,Malaysia
4. University of Malaya,Centre for Foundation Studies in Science,Kuala Lumpur,Malaysia
5. Universiti Kuala Lumpur British Malaysian Institute,Medical Engineering Technology Section,Kuala Lumpur,Malaysia
6. Allameh Tabataba’ie University,Department of Statistics, Mathematics and Computer Science,Tehran,Iran