Pelaksanaan Lelang Eksekusi Jaminan Perbankan Syariah Melalui E-Auction Pada Kantor Pelayanan Kekayaan Negara dan Lelang (KPKNL) Ditinjau Menurut Perspektif Hukum Islam.= Implementation of Sharia Banking Guarantee Execution Auctions Through E-Auction at Kantor Pelayanan Kekayaan Negara dan Lelang (KPKNL) Reviewed from the Perspective of Islamic Law