Firdaus, Nailufar. “PENGARUH PEMBERIAN ENDORPHIN MASSAGE TERHADAP SKALA NYERI IBU BERSALIN DI BPM LU’LUATUL MUBRIKOH, S.ST BANGKALAN”. JURNAL ILMIAH OBSGIN : Jurnal Ilmiah Ilmu Kebidanan & Kandungan P-ISSN : 1979-3340 E-ISSN : 2685-7987, vol. 10, no. 2, Sept. 2018, pp. 1-5, https://ojsnhm.com/index.php/JOB/article/view/281.