Nasution, S.S. et al. 2025. The Effectiveness of Blended Learning Based on Guided Discovery Learning to Improve Critical Thinking Skills . Perspektif Pendidikan dan Keguruan. 16, 2 (Oct. 2025), 112–124. DOI:https://doi.org/10.25299/perspektif.2025.vol16(2).19980.