1. Thushara, Kollam, Kerala, India
2. Faculty of Education, Mathematics and Science Education, Sivas Cumhuriyet University, Sivas, Turkey
3. Department of Pharmacy, Health Services Vocational School, Sivas Cumhuriyet University, Sivas, Turkey
4. Department of Industrial Chemistry, Mangalore University, Mangalagangothri, Karnataka, India
5. Department of Physics, Srinivasa Institute of Technology and Management Studies (Autonomous), Chittoor, Andhra Pradesh, India
6. Department of Chemistry, P.A. College of Engineering, Mangalore, Karnatka, India