Wongsuay, S. 2019. Factors Associated with Direct Non-medical Costs of Outpatients in the Community Hospital and Health Promoting Hospitals in Kokha District: a Cross-sectional Survey. Vajira Medical Journal : Journal of Urban Medicine. 63, 4 (Aug. 2019), 239–246. DOI:https://doi.org/10.14456/vmj.2019.25.