G. P. Agustin, A. Afrizal, and I. Irwanto, “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, vol. 1, no. 1, pp. 1–10, May 2024, doi: 10.70232/zfd29e68.