EMMI KHOLILAH HARAHAP; SUMARTO , Sumarto. Educational Supervision with Scientific Methods in Improving Student Learning Outcomes and the Performance of High-Achieving Teachers. Attractive : Innovative Education Journal, [S. l.], v. 8, n. 2, p. 687–696, 2026. DOI: 10.51278/aj.v8i2.2325. Disponível em: https://attractivejournal.com/index.php/aj/article/view/2325. Acesso em: 28 aug. 2026.