HUMAERA; DARMIYATI. MENGOPTIMALKAN KETERAMPILAN BERPIKIR KRITIS DAN HASIL BELAJAR PEMBELAJARAN MATEMATIKA MENGGUNAKAN MODEL PROBLEM BASED LEARNING KOMBINASI REALISTIC MATEMATIC EDUCATION, SNOWBALL THROWING. Didaktik : Jurnal Ilmiah PGSD STKIP Subang, v. 11, n. 03, p. 263 - 277, 4 Sep. 2025.