?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Mega+Elvianasti%2C+Mega&rft.aufirst=Mega&rft.aulast=Mega+Elvianasti&rft.atitle=Analisis+Kemampuan+Pedagogy+Knowledge+(PK)+Mahasiswa+Calon+Guru+Biologi+pada+Konsep+Genetika+dan+Ekologi&rft.issue=1&rft.date=2016&rft.issn=1411-5166&rft.title=Sigma&rft.volume=8&rft.pages=1-7&rft.genre=article