Analisis Penggunaan Asas Terang dan Tunai oleh Majelis Hakim Serta Perlindungan Hukum bagi Para Pihak dalam Pembatalan Perjanjian Pengikatan Jual Beli Nomor 63 Tahun 2011 (Studi Putusan Mahkamah Agung Nomor 904 K/PDT/2020) = Analysis of the Use of the Principles of Light and Cash by the Judges Panel and Legal Protection for Parties in the Cancellation of Sale and Purchase Agreement Number 63 of 2011 (Study of Supreme Court Decision Number 904 K/PDT/2020)