T. Nopriana, T. Herman, and B. A. P. Martadiputra, “Prospective Mathematics Teachers’van Hiele’s Geometry Thinking and Habits of Mind: A Description of Hard Skill and Soft Skill by Gender”, A Journal Primarily Focused on Mathematics Education with Selected Contributions in Mathematics, vol. 1, no. 1, pp. 51–60, Mar. 2023.