Unika Tri Pangestuti, Dwi Sulistyaningsih, Eko Andy Purnomo. Analysis of The Need for Electronic Teaching Materials on the Topics of Relations and Function for Grade VIII. Proximal [Internet]. 2025 Jan. 29 [cited 2025 Jul. 8];8(1):336-48. Available from: https://www.e-journal.my.id/proximal/article/view/5181