Winarsih, Sri, and Nurul Husnah Mustika Sari. “The Effect of the Hands-on Activity Learning Model Assisted by the Opportunity Board on students’ Mathematical Representation Ability”. Journal Focus Action of Research Mathematic (Factor M) 8, no. 2 (December 22, 2025): 162–179. Accessed September 7, 2026. https://jurnalfaktarbiyah.iainkediri.ac.id/index.php/factorm/article/view/5030.