?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Oktian+Fajar+Nugroho&rft.aufirst=-&rft.au=Oktian+Fajar+Nugroho%2C+-&rft.title=DEVELOPING+LEARNING+MODEL+OF+ENVIRONMENTAL+EDUCATION+COURSE+BASED+ON+ETHNO+STEM+FOR+PRESERVICE+TEACHERS+TO+ENHANCE+SUSTAINABILITY+LITERACY&rft.date=25+August+2022&rft.degree=S3&rft.inst=Universitas+Pendidikan+Indonesia