Utari, Rahma Siska, and Tria Gustiningsi. “Developing of Higher Order Thinking Skill in Relation and Function to Support Student’s Creative Thinking”. Jurnal Pendidikan Matematika, vol. 15, no. 1, Oct. 2024, pp. 49-60, https://jpm.ejournal.unsri.ac.id/index.php/jpm/article/view/204.