Labolo, Indra. “Penggunaan Model Contextual Teaching and Learning Pada Pembelajaran Penjumlahan Dan Pengurangan Bilangan Bulat Di Sekolah Dasar”. Tadulako Educational Research Journal 1, no. 1 (April 30, 2021): 41–46. Accessed October 2, 2025. https://jurnalfkipuntad.com/index.php/terj/article/view/875.