Healthline. https://www.healthline.com/health/baby/w-sitting
Diakses pada 13 Maret 2021International Hip Dysplasia Institute. https://hipdysplasia.org/w-sitting-and-hip-development/
Diakses pada 13 Maret 2021Childs Play Therapy Center. https://www.childsplaytherapycenter.com/w-sitting-correct/
Diakses pada 13 Maret 2021