“Parametric Represantations of Surfaces Containing a Common Isophote Curve In 3-Dimensional Galilean Space”. Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika 9, no. 1 (February 4, 2026): 104–114. Accessed March 5, 2026. https://e-journal.my.id/proximal/article/view/7851.