F, Hasriyanti, Supriyana Supriyana, and Runjati Runjati. 2021. “Self-Empowerment, Affirmation And Relaxation Training Against Stress Levels And Cortisol Levels In Pregnant Women: Systematic Literature Review”. STRADA Jurnal Ilmiah Kesehatan 10 (1), 335-43. https://doi.org/10.30994/sjik.v10i1.636.