Mahdalena, Olvi, Zuliati Zuliati, dan Sarkiah Sarkiah. “Efektivitas Teknik Counter Pressure Vertebra Sacralis Terhadap Pengurangan Nyeri Ibu Bersalin Kala I: Literature Review”. Proceeding Of Sari Mulia University Midwifery National Seminars 4, no. 1 (Juli 7, 2022): 98–108. Diakses Juli 3, 2024. https://ocs.unism.ac.id/index.php/PROBID/article/view/1112.