Naimnule, M., Y. J. Kehi, and R. Handayani. “Development of Student Worksheets Using The Missouri Mathematics Model With Peer Feedback on Linear Programming Material”. Vygotsky: Jurnal Pendidikan Matematika Dan Matematika, vol. 7, no. 2, Aug. 2025, pp. 111-26, doi:10.30736/voj.v7i2.1217.