Hartono, Hartono, Niasika Huda, and Iwit Prihatin. “Model Pembelajaran Missouri Mathematics Poject Terhadap Kemampuan Pemecahan Masalah Matematis Ditinjau Dari Self Confidence Siswa”. Journal of Education and Learning Mathematics Research (JELMaR) 1, no. 1 (January 16, 2020): 25-32. Accessed February 23, 2026. https://jelmar.wisnuwardhana.ac.id/index.php/jelmar/article/view/4.