Kala, Sasikarn, and Rangsinan Khaonark. 2016. “Breastfeeding in Postpartum Mothers of Sick Newborns”. Journal of Research in Nursing-Midwifery and Health Sciences 36 (4):196-208. https://he02.tci-thaijo.org/index.php/nur-psu/article/view/73583.