Rahayu, Rahmita, and Fatmawati Fatmawati. 2020. “Meningkatkan Kemampuan Interaksi Sosial Terhadap Siswa Kesulitan Belajar Matematika Melalui Metode Tutor Sebaya”. Ranah Research : Journal of Multidisciplinary Research and Development 2 (2), 18-28. https://jurnal.ranahresearch.com/index.php/R2J/article/view/223.