Rinda Ica Ayuni, Homsiatur Rohmatin, and Agustina Widayati. “Effect of Breathing Relaxation Techniques on Changes in Blood Pressure Among Pregnant Women With Pre-Eclampsia”. Health and Technology Journal (HTechJ) 1, no. 2 (May 5, 2023): 165–171. Accessed December 9, 2025. https://journalkhd.com/ojs/index.php/htechj/article/view/24.