Tampubolon, T. ., Sibarani, S. ., & Sibarani, R. . (2022). The Evaluation of Mathematics Online Learning in Eight Grade Students of SMP Negeri 1 Sipahutar in Academic Year 2021/2022. International Journal of Humanities and Education Development (IJHED), 4(4), 52-56. https://doi.org/10.22161/jhed.4.4.8