Jannah, M., E. Harahap, and R. Suroyo. “he elationship aternal ctivity n aking regnant omen lasses ith educed isk f hildbirth t he intu adang ealth enter”. ancasakti ournal f ublic ealth cience nd esearch, ol. 1, no. 2, Sept. 2021, pp. 138-42, doi:10.47650/pjphsr.v1i2.265.