Sumber:

• https://www.bellybelly.com.au/birth/shaking-during-labour-and-birth-what-you-need-to-know/
• https://www.ncbi.nlm.nih.gov/pubmed/10360859
• https://www.parents.com/pregnancy/my-body/changing/uncontrollable-shaking-during-labor-and-pregnancy-hormones/