Erika, Erika, Nongnut Boonyoung, and Sopen Chunuan. 2017. “The Maternal Role Performance Among Indonesian Pregnant Adolescents”. Journal of Research in Nursing-Midwifery and Health Sciences 37 (Supplement):80-88. https://he02.tci-thaijo.org/index.php/nur-psu/article/view/106595.