Triyanto, S. A., W. Wahidin, N. Hartania, A. Solihat, and S. Sutrisno. “Blended-Problem Based Learning With Integrated Social Media-Based Learning Media in Improving students’ Critical Thinking Skills”. Biosfer: Jurnal Pendidikan Biologi, Vol. 15, no. 2, Oct. 2022, pp. 242-54, doi:10.21009/biosferjpb.25792.