Menna Okok Ojulu และ Montakarn Chuemchit. (2019) The utilization of institutional delivery service among mothers of under 2 years old children in Gambella region Ethiopia. Chulalongkorn University:ม.ป.ท.Menna Okok Ojulu และ Montakarn Chuemchit. 2019. The utilization of institutional delivery service among mothers of under 2 years old children in Gambella region Ethiopia. ม.ป.ท.:Chulalongkorn University;Menna Okok Ojulu และ Montakarn Chuemchit. The utilization of institutional delivery service among mothers of under 2 years old children in Gambella region Ethiopia. ม.ป.ท.:Chulalongkorn University, 2019. Print.