Syahrial, Syahrial, et al. “THE URGENCY OF DEVELOPING PRIMARY SCHOOL STUDENTS’ MATHEMATICAL THINKING SKILLS IN THE CONTEXT OF 21ST CENTURY EDUCATION”. Jurnal Merah Putih Sekolah Dasar, vol. 2, no. 6, July 2025, pp. 569-80, doi:10.24114/jmpsd.v2i6.72482.