1. Research Group in Educational Statistics, National University of Education (UNAE), Azogues, Ecuador
2. University of Madras, Chennai, India
3. Department of Pharmacy, Al-Manara College for Medical Sciences (Maysan), Iraq
4. Medical Lab. Techniques Department, College of Medical Technology, Al-Farahidi University, Baghdad, Iraq
5. Al-Mustaqbal University College, Babylon, Iraq