Purwanti, M. F. I., and R. Rosyidah. “The Relationship of Anemia in 3rd Trimester Pregnant Women With the Length of the 1st Stage of Latent Phase: Hubungan Anemia Pada Ibu Hamil Trimester 3 Dengan Lama Kala 1 Fase Laten”. Indonesian Journal of Innovation Studies, vol. 15, July 2021, p. 10.21070/ijins.v15i.547, doi:10.21070/ijins.v15i.547.