Purnamasari, Epih, et al. “Mathematical Critical Thinking in Trigonometry Under E-Module-Supported Project-Based Learning: An Explanatory Sequential Study Across Self-Reported Modality Preferences”. International Journal of Environment, Engineering and Education, vol. 8, no. 3, Sept. 2026, pp. 500-24, doi:10.55151/ijeedu.v8i3.566.