Anggraeni, Surti, and Miskiyah Miskiyah. “Inhibiting Back Pain and Enhancing Comfort During Pregnancy With The Power of Endorphin Massage ”. Poltekita : Jurnal Ilmu Kesehatan, vol. 17, no. 1, May 2023, pp. 176-81, doi:10.33860/jik.v17i1.2217.