Eriana, Eriana, Kartono Kartono, and Sugianto Sugianto. 2018. “Understanding Ability of Mathematical Concepts and Students’ Self-Reliance towards Learning by Implementing Manipulative Props (APM) on Jigsaw Technique”. Journal of Primary Education 8 (2), 176-83. https://journal.unnes.ac.id/sju/jpe/article/view/25984.