Pastuty, Rosyati, eliza dora, and siti hindun. “Effect of Diaphragm Breathing Exercise on Reducing Anxiety Level of Pregnant Women”. Journal of Maternal and Child Health Sciences (JMCHS) 1, no. 2 (December 17, 2021): 105-110. Accessed September 7, 2024. https://jurnal.poltekkespalembang.ac.id/index.php/JMCHS/article/view/990.