Afifah S, Mudzakir A, Nandiyanto A. How to Calculate Paired Sample t-Test using SPSS Software: From Step-by-Step Processing for Users to the Practical Examples in the Analysis of the Effect of Application Anti-Fire Bamboo Teaching Materials on Student Learning Outcomes. IJoTis [Internet]. 1 Maret 2022 [dikutip 16 September 2026];2(1):81-92. Tersedia pada: https://ejournal-dppm.upi.edu/ijotis/article/view/886