Pertanggungjawaban notaris terhadap degradasi dan kebatalan akta (studi kasus terhadap putusan majelis pengawas wilayah notaris nomor M.01.MPWN.Prov.Jatim.12.14 tahun 2014) = Notary liability of degradation and deed nullification (case study against territory notary supervisory council decision No M.01.MPWN.Prov.Jatim. 12.14. 2014)