Sunandar, M., Zaenuri, Z. and Dwidayati, N. (2018) “Mathematical Mathematical Problem Solving Ability Of Vocational School Students On Problem Based Learning Model Nuanced Ethnomatematics Reviewed From Adversity Quotient”, Unnes Journal of Mathematics Education Research, 7(1), pp. 1-8. Available at: https://journal.unnes.ac.id/sju/ujmer/article/view/21277 (Accessed: 21December2024).