Desyanti, Harwin Holilah, and Sasriawati Sasriawati. “The Use of Birth Ball As A Non-Pharmacological Complementary Therapy in The Reduction of Labor Pain in Phase 1”. Jurnal Indonesia Sosial Sains 5, no. 08 (August 26, 2024): 2041–2049. Accessed September 19, 2024. https://jiss.publikasiindonesia.id/index.php/jiss/article/view/1218.