Soe, H. H. K., and R. Somronthong. “Factors Influencing Intention of Maternal Health Care Services Utilization in Pa-Oh Ethnic Group in Myanmar”. Journal of Health Research, vol. 25, no. 3, Mar. 2017, pp. 147-52, https://he01.tci-thaijo.org/index.php/jhealthres/article/view/81161.