Ningsih, T. H., E. Darmawani, and E. . Surtiyoni. “Self-Efficacy and Self-Management: Group Counseling As an Effort to Solve Student Problems”. Nusantara of Research : Jurnal Hasil-Hasil Penelitian Universitas Nusantara PGRI Kediri, vol. 10, no. 3, Oct. 2023, pp. 351-6, doi:10.29407/nor.v10i3.20439.