Johanna Purba, M., Gorky Sembiring, M., & Sitompul, P. (2026). The Effect of Mathematical Connection and Critical Thinking Skills on Mathematical Problem Solving Skills of Vocational School Students . Journal Research of Social Science, Economics, and Management, 5(6), 9994–10014. https://doi.org/10.59141/jrssem.v5i6.1299