?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Sarman%2C+Sri+Neviyanti&rft.aulast=Sarman&rft.aufirst=Sri+Neviyanti&rft.date=2020&rft.degree=Bachelor&rft.title=Analisis+Kemampuan+Berpikir+Kritis+Matematika+Siswa+Pada+Masa+Pandemi+COVID-19+Di+MTs+Negeri+21+Jakarta&rft.inst=Universitas+Muhammadiyah+Prof.+Dr.+Hamka