E. Wahyuni, R. L. Marsofely, and C. Wulandari, “Deep Back Massage Effect on the Reduction of Active Phase 1 Labor Pain at the Curup Public Hospital Indonesia”, IJSBAR, vol. 42, no. 4, pp. 1–7, Nov. 2018, Accessed: Oct. 12, 2025. [Online]. Available: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/9456