Agustin GP, Afrizal A, Irwanto I. Analysis of Students’ Critical Thinking Abilities Through the Numbered Heads Together (NHT) Cooperative Learning Model on the Topic of Buffer Solutions. J Res Educ Pedagog [Internet]. 2024 May 1 [cited 2026 Apr. 27];1(1):1-10. Available from: https://spm-online.com/jrep/index.php/journal/article/view/1