B, Gusnawati, Agustan S, and Sulfasyah Sulfasyah. “PENGARUH MODEL PEMBELAJARAN PROBLEM BASED INSTRUCTION (PBI) BERBASIS LITERASI MATEMATIKA TERHADAP KETERAMPILAN BERPIKIR KRITIS PEMBELAJARAN MATEMATIKA SISWA KELAS IV SE-GUGUS II”. JURNAL HANDAYANI PGSD FIP UNIMED 12, no. 2 (December 2, 2021): 75–81. Accessed January 31, 2025. http://103.242.233.34/index.php/handayani/article/view/34182.