Pradinar, F. and Pujiastuti, E. 2022. Mathematical Creative Thinking Ability in terms of the Habits of Mind in PBL with a Management System with a Goal Free Problems strategy. Unnes Journal of Mathematics Education. 11, 1 (Mar. 2022), 78-85. DOI:https://doi.org/10.15294/ujme.v11i1.55860.