Larasanti, Rida, et al. “Algebraic Thinking and Algebraic Reasoning in School Mathematics: A Systematic Literature Review Based on the Pirie–Kieren Theory”. JRPM (Jurnal Review Pembelajaran Matematika), vol. 11, no. 1, June 2026, pp. 15-36, doi:10.15642/jrpm.2026.11.1.15-36.