Sumber:

• https://www.healthline.com/health/pregnancy/constipation-remedies#1
• https://hellosehat.com/hidup-sehat/nutrisi/7-makanan-sumber-probiotik-bakteri-baik/
• https://www.medicalnewstoday.com/articles/324379.php
• https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3418980/
• https://www.whattoexpect.com/pregnancy/symptoms-and-solutions/constipation.aspx