Perlindungan hukum bagi bank selaku pemegang hak tanggungan dalam kredit pemilikan rumah dalam hal peralihan hak atas tanah dinyatakan tidak sah menurut hukum: studi kasus putusan Mahkamah Agung Republik Indonesia nomor 1606 K/PDT/2013 = Legal protection for bank as the holder of encumbrance right in house ownership credit in the case of transfer of land right is decided unlawful case study decision of supreme court of the Republic of Indonesia no 1606 K/PDT/2013