Tanggung jawab PPAT terhadap akta jual beli tanah : Studi kasus akta jual beli tanah N0.170/Cempaka Putih putusan mahkamah agung RI N0 1923K/PDT /2008) = Responsibility PPAT On deed of sale and purchase of land : Case Study Land Purchase Deed Number 170/Cempaka White, supreme court of the Republic of Indonesia Number 1923 K/PDT/2008