Wulandari, Heny, Indah Kurniawati, and Nuristy Brillian Ainindiyahsari Winarna. 2025. “The Effectiveness of Using Gym Ball in Reducing Back Pain in the Third-Trimester Pregnant Women ”. Jurnal Midpro 16 (2):135-48. https://doi.org/10.30736/md.v16i2.713.