Ristontowi, R., S. Adepio, W. Ramadianti, M. Masri, and R. Jumri. “Description of Students’ Mathematical Critical Thinking Ability on Circle Material in Class VIII of SMP Negeri 09 Lebong”. Journal of Mathematics Instruction, Social Research and Opinion, vol. 4, no. 4, Dec. 2025, pp. 1653–1664, doi:10.58421/misro.v4i4.1165.