Yunardi, Simanjuntak, Y. T. . and Butar-Butar, C. R. (2022) “The relationship of knowledge and attitude of pregnant women about early rupter of room (opm) in Palmarum Clinic Pamatang Raya”, Science Midwifery, 10(5), pp. 3984–3989. doi: 10.35335/midwifery.v10i5.1055.