?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Azla&rft.aulast=Ismathulhuda&rft.au=Ismathulhuda%2C+Azla&rft.atitle=Validity+and+Practicality+of+Project-Based+e-Student+Worksheet+on+Thermochemical+Materials+to+Improve+Learning+Outcomes&rft.date=31+July+2022&rft.issn=Print+%3A+1907-1744+dan+Online+%3A+2460-1500&rft.title=Jurnal+Penelitian+Pendidikan+IPA+(Journal+of+Research+in+Science+Education)&rft.volume=8&rft.issue=3&rft.pages=1433-1441&rft.genre=article