Rai, A., ยิ้มแย้ม ส., and เทียนสวัสดิ์ ส. “Breastfeeding Practice and Self-Efficacy Among First-Time Nepalese Adolescent Mothers”. Nursing Journal CMU, vol. 46, no. 1, Mar. 2019, pp. 149-65, https://he02.tci-thaijo.org/index.php/cmunursing/article/view/180851.