Dalil perbuatan melawan hukum dalam perkara jual beli tanah dan bangunan (Studi kasus terhadap Putusan No.173/Pdt.G/2010/PN.Dpk) = The proposition of unlawful act on land sale and purchase agreement (Case study district court decision number 173/Pdt.G/2010/PN.Dpk) - Renhard, author (2014)