1. N. Rahmah, “The Nature of Mathematics Education,” Al-Khwarizmi: Journal of Mathematics Education and Natural Sciences, Vol. 2, No. 1, pp. 1–10, (2013)
2. M. Sari, M. Habibi and R. Putri, “The Influence of the Think-Pairs-Share Type Cooperative Learning Model in Learning Mathematics on the Ability to Understand Mathematical Concepts and Character Development of High School Students in Sungai Kunci,” Edumatics: Journal of Mathematics Education Research, Vol. 1, No. 1, pp. 7–21, (2018)
3. Y.P. Utami and D.A.D. Cahyono, “Study At Home: Analysis of Difficulties in Learning Mathematics in the Online Learning Process,” Scientific Journal of Realistic Mathematics, Vol. 1, No. 1, pp. 20–26 (2020)
4. M.K. Umam, “The Use of the Jarithmetic Method in Increasing Learning Motivation,” Awwaliyah: Journal of Elementary School Teacher Education, Vol. 2, No. 1, pp. 45–68 (2019)
5. N.T. Huda, “Ethnomathematics in the Form of Market Snacks in the Special Region of Yogyakarta,” Jnpm: National Journal of Mathematics Education, Vol. 2, No. 2, pp. 217–232 (2018)