Pujiastuti, H., R. Haryadi, and A. M. Arifin. “The Development of Augmented Reality-Based Learning Media to Improve Students’ Ability to Understand Mathematics Concept”. Unnes Journal of Mathematics Education, Vol. 9, no. 2, Aug. 2020, pp. 92-01, doi:10.15294/ujme.v9i2.39340.