Kania, Nia, Yaya S. Kusumah, Jarnawi Afgani Dahlan, Elah Nurlaelah, and Florence Kyaruzi. 2024. “Decoding Student Struggles in Geometry: Newman Error Analysis of Higher-Order Thinking Skills”. International Journal of Geometry Research and Inventions in Education 1 (1):31-47. https://doi.org/10.56855/gradient.v1i01.1146.