Mardjan, M., Y. Prabandari, M. Hakimi, and C. Marchira. “Emotional Freedom Techniques for Reducing Anxiety and Cortisol Level in Pregnant Adolescent Primiparous”. Unnes Journal of Public Health, Vol. 7, no. 1, Jan. 2018, pp. 1-6, doi:10.15294/ujph.v7i1.19212.