Zelharsandy, V. T., M. Soleha, and R. Anggeriani. “The Effect of Endorphin Massage to Reduce Back Pain in Third Trimester Pregnant Women”. Indonesian Journal of Global Health Research, Vol. 6, no. 2, Mar. 2024, pp. 565-72, doi:10.37287/ijghr.v6i2.2874.