Pelindungan dan Pertanggungjawaban Hukum Badan Pertanahan Nasional Terhadap Pembeli Tanah Bersertipikat Hasil Pendaftaran Tanah Sistematis Lengkap yang Tanahnya Tersebut Juga Dijaminkan Berdasarkan Girik di Bank = Protection and Legal Liabilty of the National Land Agency for Buyers of Certified Land as a Result of Complete Systematic Land Registration whose Land is Also Guaranteed Based on Girik at the Bank