Astuti, Silvia Rindu. “Mathematical Problem-Solving Ability of High School Vocational School Students on Linear Programming”. Jurnal Inovasi Pembelajaran Matematika: PowerMathEdu 3, no. 1 (August 30, 2024): 101–112. Accessed August 6, 2025. https://journal.institutpendidikan.ac.id/index.php/pme/article/view/1778.