Narumi, Safira, and Kartono Kartono. “The Application of Fast Feedback in Discovery Learning on the Achievement of Critical Thinking Ability Reviewed from Adversity Quotient”. Unnes Journal of Mathematics Education 9, no. 3 (November 30, 2020): 166-175. Accessed May 18, 2024. http://journal.unnes.ac.id/sju/ujme/article/view/41862.