Mediastuti EP, Septiani E. Pengaruh Penggunaan Aplikasi E-Book Senam Hamil terhadap Penurunan Nyeri Punggung Bawah pada Ibu Hamil Trimester II dan III: The Effect of Using a Pregnancy Exercise E-Book Application on Reducing Lower Back Pain in Pregnancy Women in the Second and Third Trimesters. jakk [Internet]. 2025 Jul. 31 [cited 2026 Jan. 23];4(2):357-69. Available from: https://jakk.candle.or.id/index.php/jakk/article/view/100