HARNIKO, Arafanda Maharani Putri; KUSTIN; VITALIATI, Trisna. The Effect of Psychoeducation on Self-Efficacy in Elderly People with Diabetes Mellitus. Journal of Nursing Periodic, [S. l.], v. 1, n. 2, 2024. DOI: 10.36858/jnp.v1i2.25. Disponível em: https://jnp.uds.ac.id/jnp/article/view/25. Acesso em: 2 sep. 2025.