Darmayanti, P.A.R., Januraheni, N.L.P. and Nugraeni, D.W. 2020. Doula assistance on anxiety and duration of giving birth in normal mother giving birth. International journal of health sciences. 4, 3 (Oct. 2020), 39–48. DOI:https://doi.org/10.29332/ijhs.v4n3.455.