Leonardo II, Jerome O., and Ruth A. Ortega-Dela Cruz. 2024. “Problem-Based Learning on Improving the Problem-Solving Skill, Attitude, and Study Habit in Mathematics”. Annales Universitatis Paedagogicae Cracoviensis | Studia Ad Didacticam Mathematicae Pertinentia 16 (December):43-67. https://doi.org/10.24917/20809751.16.3.