Sahara, Punam, Citra Utami, and Dina Anika Marhayani. “Analysis of Student Learning Outcomes in Mathematics Learning in View of the Level of Concentration in Learning Building Materials at SDN 93 Singkawang”. QISTINA: Jurnal Multidisiplin Indonesia 3, no. 1 (June 1, 2024): 897–907. Accessed September 8, 2026. https://rayyanjurnal.com/index.php/qistina/article/view/2459.