Dinamika Permasalahan Hukum Akta Perjanjian Kredit dan Hak Tanggungan (Studi Putusan Pengadilan Negeri Medan Nomor 663/Pdt.G/2019/PN Mdn juncto Putusan Pengadilan Tinggi Medan Nomor 395/Pdt/2020/PT Mdn) = The Dynamics of Legal Issues regarding Credit Agreement and Mortgage Deeds (Study of Medan District Court Decision Number 663/Pdt.G/2019/PN Mdn in conjunction with Medan High Court Decision Number 395/Pdt/2020/PT Mdn)