Sumber:

– https://www.healthline.com/health/parenting/when-do-babies-start-teething#symptoms
– https://www.healthychildren.org/English/ages-stages/baby/teething-tooth-care/Pages/Babys-First-Tooth-Facts-Parents-Should-Know.aspx
– https://www.nhs.uk/conditions/baby/babys-development/teething/baby-teething-symptoms/
– https://www.whattoexpect.com/first-year/teething/
– https://www.webmd.com/parenting/baby/teething-symptoms-remedies#1