Wahyuni, Elly, Reka Lagora Marsofely, and Chyntamie Wulandari. 2018. “Deep Back Massage Effect on the Reduction of Active Phase 1 Labor Pain at the Curup Public Hospital Indonesia”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 42 (4):1-7. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/9456.