Rocalina, N., E. Yusmin, D. Ahmad, H. Halini, and A. Hartoyo. “Ability to Interpret Concentration of Statistical Data in the Form of Diagrams in Class VII Students of SMP Negeri 1 Boyan Tanjung”. Jurnal Pendidikan Indonesia, vol. 2, no. 01, Oct. 2023, pp. 46-55, doi:10.58471/ju-pendi.v2i01.263.