Ni’amah, S., and Y. Irnawati. “Effectiveness Of Endorphin Massage On Back Pain Intensity In Pregnant Women In The Thirty-Three Trimester At Pati I Public Health Center Pati Regency”. Proceeding Cendekia International Conference Health and Technology, vol. 4, no. 1, July 2026, pp. 29-36, doi:10.31596/pcicht.v4i.289.