Icha Biassari, Novita Agung Wicaksono, and Hari Sunaryo. “Improving Mathematics Learning Outcomes on Fraction Material Using Pbl-Based Petis (automatic Fraction) Media for Elementary School Students”. JURNAL PENDIDIKAN DASAR NUSANTARA, vol. 9, no. 2, Jan. 2024, pp. 246-58, doi:10.29407/jpdn.v9i2.20774.