1. Department of Environmental Health, College of Health Sciences and Medicine, Dilla University, Dilla, Ethiopia
2. Department of Human Nutrition, College of Health Sciences and Medicine, Dilla University, Dilla, Ethiopia
3. Department of Public Health, College of Medicine and Health Science, Arsi University, Asella, Ethiopia
4. Department of Public Health, College of Medicine and Health Science, Wachamo University, Hosaena, Ethiopia
5. Department of Public Health, College of Health Sciences and Medicine, Dilla University, Dilla, Ethiopia