?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Mai+Sri&rft.aulast=Lena&rft.au=Lena%2C+Mai+Sri&rft.atitle=Students%E2%80%99+Learning+Outcomes+Using+Problem-Based+Learning+and+Discovery+Learning+Models+in+Thematic+Integrated+Learning&rft.date=2019&rft.title=International+Journal+of+Innovation&rft.volume=5&rft.issue=5&rft.pages=448-457&rft.genre=article