Hnin Ei Lwin และ Alessio Panza. (2017) Characteristics and factors affecting contraceptive utilization in premarital sexual relationship among unmarried youths in rural Yangon Myanmar. Chulalongkorn University:ม.ป.ท.Hnin Ei Lwin และ Alessio Panza. 2017. Characteristics and factors affecting contraceptive utilization in premarital sexual relationship among unmarried youths in rural Yangon Myanmar. ม.ป.ท.:Chulalongkorn University;Hnin Ei Lwin และ Alessio Panza. Characteristics and factors affecting contraceptive utilization in premarital sexual relationship among unmarried youths in rural Yangon Myanmar. ม.ป.ท.:Chulalongkorn University, 2017. Print.