Sumber:

• https://healthyliving.azcentral.com/how-to-use-a-tens-unit-to-aid-in-lactation-12419899.html
• https://www.medfaxxinc.com/articles/can-a-tens-unit-help-mothers-with-breast-feeding.html
• https://www.ncbi.nlm.nih.gov/books/NBK500830/
• http://painreductiontherapy.com/articles/tens-stimulation-for-lactation.html
• https://www.tenscare.co.uk/breastfeeding-how-meet-your-goals