Rosidah, R., dan H. N. . Sopiany. “Analisis Hypothetical Learning Trajectory Siswa SMP Pada Materi Bilangan Bulat”. Prosiding Sesiomadika, vol. 5, no. 2, Juni 2024, hlm. 210-22, https://journal.unsika.ac.id/sesiomadika/article/view/10391.