P. M. I. Silalahi, D. Ginting, S. Salasa, I. Mutia, Y. Yusnadi, and A. Yus, “Analysis of the Implementation of Problem-Based Learning Models in Integrated Thematic Learning in Elementary Schools”, tematik, vol. 14, no. 2, pp. 146–151, Nov. 2025, doi: 10.24114/jt.v14i2.69520.