Pravitasari, I. R., V. Widyaningsih, and B. Murti. “The Effect of Kangaroo Mother Care in Increasing Body Weight and Temperature in Premature Infants: Meta-Analysis”. Journal of Maternal and Child Health, vol. 5, no. 5, Sept. 2020, pp. 563-78, https://thejmch.com/index.php/thejmch/article/view/496.