Mustika Wati, et al. “Integrating Authentic Learning in Collaborative Problem-Solving Model: Stacking Analysis of Students’ Problem-Solving Abilities Running Head: Authentic Learning in Collaborative Problem-Solving Model Type of the Research: Research Article”. Kurdish Studies, vol. 11, no. 2, Dec. 2023, pp. 5165-81, doi:10.67145/ks.v11i2.1116.