Sumber:

• https://cam.cochrane.org/effect-tens-pain-relief-labor
• https://evidencebasedbirth.com/transcutaneous-electrical-nerve-stimulation-tens-for-pain-relief-during-labor/
• https://www.ncbi.nlm.nih.gov/pubmed/9544709
• https://www.sciencedirect.com/science/article/pii/S1836955315001289
• http://vitalcore.com.au/womens-health/tens-for-labour-pain/