Agustyani, Anggit Reviana Dewi, Nanang Priatna, and Bambang Avip Priatna Martadiputra. “Attitude towards Problem-Solving As the Effect of Problem-Posing Approach”. Unnes Journal of Mathematics Education 9, no. 2 (August 31, 2020): 83-91. Accessed December 21, 2024. https://journal.unnes.ac.id/sju/ujme/article/view/38776.