Sari ML, Ghofur MA. Web-based mind mapping learning media to increase understanding of economic policy materials. Harmoni. Sos.: J. Pendidik. IPS [Internet]. 2020 Sep. 8 [cited 2025 Jun. 13];7(2):104-18. Available from: https://jurnal.uny.ac.id/index.php/hsjpi/article/view/32078