1. School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, Ethiopia
2. School of Public Health, College of Health Sciences, Addis Ababa University, Ethiopia
3. School of Public Health, College of Health and Medical Sciences, Haramaya University, Ethiopia
4. Department of Midwifery, Faculty of Health Science, Institute of Health, Jimma University, Jimma, Ethiopia