Akibat Hukum Perjanjian Perkawinan Yang Belum Disahkan Pegawai Pencatat Perkawinan Terhadap Suami Istri dan Pihak Ketiga (Studi Putusan Nomor 82/Pdt.G/2018/PN.Skt) = Legal Consequences of Marriage Agreements That Have Not Been Ratified by Registrar of Marriage Against Married Couples and Third Parties. (Study of Decision Number 82 / Pdt.G / 2018 / Pn.Skt)