Helmi, Risna, Yumiati, and Endang Wahyuningrum. “Google Sites-Mediated Problem-Based Learning: Effects on Students’ Conceptual Understanding and Mathematical Self-Efficacy”. Indonesian Technology and Education Journal 4, no. 3 (October 24, 2026): 12–33. Accessed November 11, 2026. https://journal.diginus.id/ITEJ/article/view/2400.