LATHIFAH , Neneng Siti; SIMAMORA, Grestina Yuni Farida; ANGGRAINI, Anggraini. The Effectiveness of Progressive Muscle Relaxation Technique in Reducing Labor Pain During the First Stage of Active Phase. Jurnal Bidan Cerdas, [S. l.], v. 8, n. 1, 2026. DOI: 10.33860/jbc.v8i1.4290. Disponível em: https://ojs.polkespalupress.id/index.php/JBC/article/view/4290. Acesso em: 22 apr. 2026.