?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Sumarlin%2C+Didin&rft.aulast=Sumarlin&rft.aufirst=Didin&rft.title=REGRESI+PADA+DATA+SIRKULAR&rft.date=23+December+2013&rft.degree=S1&rft.inst=Universitas+Pendidikan+Indonesia