Lutfi, Ahmad, Dadang Juandi, and Bambang Avip Priatna Martadiputra. “DEVELOPMENT PROPORTIONAL REASONING IN MATHEMATICS LEARNING ENVIRONMENT: SYSTEMATIC LITERATURE REVIEW”. Pedagogy: Jurnal Pendidikan Matematika 8, no. 1 (May 7, 2023): 107–123. Accessed October 4, 2025. https://www.e-journal.my.id/pedagogy/article/view/2469.