Hentihu, Vivi. 2021. “THE EFFECTIVENESS OF PEER TUTOR LEARNING MODEL ON MATHEMATICS LEARNING OUTCOMES ON SOCIAL ARITHMETIC MATERIAL: (Efektifitas Model Pembelajaran Tutor Sebaya Terhadap Hasil Belajar Matematika Pada Materi Aritmatika)”. Uniqbu Journal of Exact Sciences 2 (1):44-52. https://doi.org/10.47323/ujes.v2i1.114.