Wijayanti, Nisa, Tri Astuti Arigiyati, Fikri Aulia, & Sri Adi Widodo. " Development of E-Worksheet on Linear Equations and Inequalities Topics Based on Tri-N." Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang [Online], 5.2 (2021): 245-260. Web. 4 Jul. 2025