PIDA, Paulina; RUNJATI, Runjati; SUHARTONO, Suhartono. The effectiveness of the Class of Pregnant Women and the Class of Pregnant Women plus Psychoeducation in Reducing Cortisol levels and Stress levels of Pregnant Women: A Systematic Review. STRADA : Jurnal Ilmiah Kesehatan, [S. l.], v. 10, n. 1, p. 392–409, 2021. DOI: 10.30994/sjik.v10i1.648. Disponível em: https://www.sjik.org/index.php/sjik/article/view/648. Acesso em: 16 oct. 2025.