Ummah K, Khairoh M. Efektivitas Endorphine Massage terhadap Penurunan Nyeri Punggung pada Ibu Hamil Trimester III di PMB Sri Rahayu, S.Tr.Keb. Surabaya. JOB [Internet]. 2021 Dec. 30 [cited 2026 Aug. 9];13(4):226-34. Available from: https://www.ojsnhm.com/index.php/JOB/article/view/1672