Silvia L lu us, Sudibyo E, Aulia EV. Concept mapping effect on the cognitive learning outcomes of the concept of classification materials and their changes. J. Pijar.MIPA [Internet]. 2022 Jul. 31 [cited 2024 Nov. 24];17(4):486-92. Available from: http://jurnalfkip.unram.ac.id/index.php/JPM/article/view/3656