Wasiat wajibah sebagai pengganti hak kewarisan bagi istri beda agama non muslim menurut hukum Islam studi kasus putusan Mahkamah Agung R.I. nomor. 16 K/AG/2010 = obligatory bequest wasiat wajibah as the substitute of inheritance rights for wife of different religions non muslims according to islamic law case study the Supreme Court of RI Decision no. 16 K/AG/2010