Rofikhatul Ula, Wahyu, Kasmadi Supardi, and Sulhadi Sulhadi. “The Implementation of Problem Based Learning With Mind Mapping to Improve The Student’s Understanding of Concept”. Journal of Primary Education 7, no. 2 (June 2, 2018): 163-171. Accessed March 9, 2025. http://journal.unnes.ac.id/sju/jpe/article/view/23089.