Siti Alawiyah Karim, and Sulistiyah Sulistiyah. “The Effect of Endorphin Massage on Lower Back Pain in Pregnant Women on The Thirty-Thirty Trimester”. Jurnal Rumpun Ilmu Kesehatan 5, no. 3 (November 30, 2025): 158–166. Accessed March 20, 2026. https://ejurnal.politeknikpratama.ac.id/index.php/JRIK/article/view/5920.