1. NCTM. Principles and Standards for School Mathematics. Virginia: The National Council of Teachers of Mathematics, Inc.; 2000.
2. Schoenfeld A. Learning to think Mathematically : Problem solving, metacognition, and sense making in mathematics. 1992.
3. Krulik S, Rudnick J. The New Sourcebook for Teaching Reasoning and Problem Solving in Elementary School. Boston: Temple University; 1995.
4. Polya G. How to Solve It Mathematical Method. Princeton, N, J.: Princeton University Press.; 1973.
5. Ulya H. Profil Kemampuan Pemecahan Masalah Siswa Bermotivasi Belajar Tinggi Berdasarkan Ideal Problem Solving. J Konseling GUSJIGANG. 2016;2(1):90–6.