Ningsih, Herwi Stiya, et al. “The Effect of Prenatal Yoga on Reducing Back Pain Intensity in Third Trimester Pregnant Women”. Viva Medika: Jurnal Kesehatan, Kebidanan Dan Keperawatan, vol. 18, no. 2, Aug. 2025, pp. 98-103, doi:10.35960/vm.v18i2.1080.