Kekuatan Hukum Perjanjian Jual Beli Tanah di Bawah Tangan terhadap Peralihan Hak Atas Tanah (Studi Kasus: Putusan Pengadilan Negeri Jakarta Utara No. 586/Pdt/G/2020/PN.Jkt.Utr) = The Legal Power of Underhand Land Sale and Purchase Agreement on the Transfer of Land Rights (Case Study: North Jakarta District Court Decision No. 586/Pdt/G/2020/PN.Jkt.Utr)