Adjie, JM Seno, and Devi M Malik. “The Impact of Educational Intervention of HighRisk Pregnancy and HighRisk Childbirth on Knowledge, Attitude, and Behavior in Recognizing Danger Signs in Pregnancy: A Single Blind Clinical Trial”. Indonesian Journal of Obstetrics and Gynecology, vol. 5, no. 2, Oct. 2017, pp. 69-72, doi:10.32771/inajog.v5i2.520.