Harahap, Yenni Novita, Siswadi Siswadi, and Surdiyanti Surdiyanti. “Peningkatan Kemampuan Pemecahan Masalah Matematik Siswa Melalui Model Pembelajaran Team Assisted Individualization (TAI)”. OMEGA: Jurnal Keilmuan Pendidikan Matematika 1, no. 1 (December 22, 2021): 12–17. Accessed October 26, 2025. https://www.ejurnal.univamedan.ac.id/index.php/jkpm/article/view/157.