Nunung Nurhayati, Tri Wahyu Agustina, and Ucu Julita. “The Effectiveness of the Problem-Based Learning Model in Enhancing Critical Thinking Skills: A Gender-Differentiated Analysis in Biology Learning”. Indonesian Technology and Education Journal, vol. 4, no. 1, May 2026, pp. 223-37, doi:10.61255/itej.v4i1.1239.