Priambodo, Arinto, Sugiarto Sugiarto, and Adi Cahyono. “KEEFEKTIFAN MODEL LEARNING CYCLE BERBANTUAN ALAT PERAGA TERHADAP KEMAMPUAN KOMUNIKASI MATEMATIS”. Unnes Journal of Mathematics Education 3, no. 2 (August 10, 2014). Accessed August 1, 2021. https://journal.unnes.ac.id/sju/index.php/ujme/article/view/4469.