?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Suparman&rft.aulast=Yusep&rft.au=Yusep%2C+Suparman&rft.issn=978%E2%80%90979%E2%80%9016353%E2%80%903%E2%80%902&rft.atitle=Perlukah+Cross+Validation+dilakukan%3F+Perbandingan+antara+Mean+Square+Prediction+Error+dan+Mean+Square+Error+sebagai+Penaksir+Harapan+Kuadrat+Kekeliruan+Model&rft.title=Seminar+Nasional+Matematika+dan+Pendidikan+Matematika+2009&rft.date=2009&rft.genre=article