Nugroho, Dimas Adi. “Peningkatan Hasil Belajar Matematika Melalui Metode Kelompok Tutor Sebaya”. Paedagogie 13, no. 2 (November 30, 2018): 51–58. Accessed September 22, 2026. https://coba.unimma.ac.id/Paedagogie/article/view/2364.