Ekowati, D. W. ., T. . Nusantara, M. . Muksar, D. A. . Sudjimat, E. . Yayuk, and A. D. . Ismail. “Semiotic Reasoning in Mathematics: A Systematic Literature Review of Future Trends and Opportunities”. Migration Letters, vol. 20, no. 5, Aug. 2023, pp. 971-9, doi:10.59670/ml.v20i5.4158.