Ha, B. T., Tac, P. V., Duc, D. M., Duong, D. T., & Thi, L. M. (2015). Factors associated with four or more antenatal care services among pregnant women: A cross-sectional survey in eight South Central Coast provinces of Vietnam. Int J Womens Health.

Ha, Bui TT, Pham V. Tac, Duong M. Duc, Doan TT Duong, and Le M. Thi. "Factors Associated With Four or More Antenatal Care Services Among Pregnant Women: A Cross-sectional Survey in Eight South Central Coast Provinces of Vietnam." Int J Womens Health 2015.

Ha, Bui TT, et al. "Factors Associated With Four or More Antenatal Care Services Among Pregnant Women: A Cross-sectional Survey in Eight South Central Coast Provinces of Vietnam." Int J Womens Health 2015.