Setiawan, Yayan Eryk. “The Thinking Process of Students Using Trial and Error Strategies in Generalizing Linear Patterns”. Numerical: Jurnal Matematika dan Pendidikan Matematika 4, no. 1 (June 2, 2020): 1–12. Accessed July 14, 2025. https://www.journal.iaimnumetrolampung.ac.id/index.php/numerical/article/view/839.