F HR, Supriyana S, Runjati R. Self-Empowerment, Affirmation And Relaxation Training Against Stress Levels And Cortisol Levels In Pregnant Women: Systematic Literature Review. sjik [Internet]. 2021 May 2 [cited 2025 Sep. 24];10(1):335-43. Available from: https://sjik.org/index.php/sjik/article/view/636