Kritcharoen, S., S. Chunuan, S. Kala, W. Chatchawet, and K. Phon-In. “Effects of Competencies Developing Program for Nurses in Promoting, Supporting, and Protecting Breastfeeding in Southern Thailand”. Journal of Research in Nursing-Midwifery and Health Sciences, vol. 37, no. 2, June 2017, pp. 67-76, https://he02.tci-thaijo.org/index.php/nur-psu/article/view/91408.