El Mubaraq, Syahrun, et al. “Review Efektivitas Hipnoterapi Dalam Menurunkan Kualitas Dan Kuantitas Gejala Irritable Bowel Syndrome (Ibs)”. Prosiding University Research Colloquium, May 2021, pp. 45-53, https://repository.urecol.org/index.php/proceeding/article/view/1304.