Siregar, Marni, and Hetty WA Panggabean. “Reducing Effect of Hypnotherapy Anxiety in Pregnant Women”. Jurnal Penelitian Pendidikan IPA 10, no. SpecialIssue (August 31, 2024): 482–488. Accessed September 14, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/7828.