Noviarni N, Amelia R, Mahnun N. Analysis of Electronic Teaching Materials Validity from Research Result Product of Student’s Thesis Development at Mathematics Education Department of State Islamic University Sultan Syarif Kasim Riau. TSCS [Internet]. 2022 Dec. 20 [cited 2024 Sep. 20];1(1). Available from: https://jom.uin-suska.ac.id/index.php/TSCS/article/view/103