Palupi, Isah Eka, Kolifah Kolifah, and Mas Imam Ali Afandi. 2017. “ASUHAN KEBIDANAN PADA IBU HAMIL TRIMESTER II FISIOLOGIS DENGAN NYERI PUNGGUNG DI BPM SRI HARDI, Amd.Keb KECAMATAN SUMOBITO KABUPATEN JOMBANG: Midwifery Care On Primary Woman Trimester II Physiological With Back Pain In Bpm Sri Hardi, Amd.Keb District Sumobito Jombang”. Jurnal Ilmiah Kebidanan (Scientific Journal of Midwifery) 3 (2):6-10. https://journal.stikespemkabjombang.ac.id/index.php/jikeb/article/view/94.