Penggunaan akta kuasa menjual atas objek jaminan hak tanggungan sebagai alternatif sarana penyelesaian kredit bermasalah : studi kasus Putusan Mahkamah Agung Nomor 1361 K/Pdt/2010 = The uses of the deed of power attorney to sell against the object of mortgage as an alternative settlement for non performing loans : case study Supreme Court Decision Number 1361 K/Pdt/2010