Priyanti, P. 2014. Improving Students’ Learning Achievement Of Science On Describing The Natures Of Light Using Demonstration And Experiment Method (Demex) For The Fifth Grader Of B Group In Sdn 1 Karanganyar. Dinamika Jurnal Ilmiah Pendidikan Dasar. 6, 2 (Sep. 2014). DOI:https://doi.org/10.30595/dinamika.v6i2.915.