?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Dhiya%E2%80%99ul+Fajri&rft.aulast=Dhiya%E2%80%99ul+Fajri&rft.au=Dhiya%E2%80%99ul+Fajri%2C+Dhiya%E2%80%99ul+Fajri&rft.date=22+August+2011&rft.degree=S1&rft.title=THE+IMPROVEMENT+OF+STUDENT+ACHIEVEMENT+LEARNING+SMK+N+3+YOGYAKARTA+OF+BUILDING+SKILLS+BEFORE+AND+AFTER+THE+IMPLEMENTATION+OF+TEACHER+CERTIFICATION+(ACADEMIC+YEAR+2005-2010)&rft.inst=UNY