Perlindungan hukum terhadap tenaga kerja asing yang menjabat sebagai anggota direksi dalam akta perseroan terbatas (studi kasus: putusan Mahkamah Agung nomor 2772 K/PDT/2012 antara PT Longfair Iron Mining melawan PT Mentaya Iron Ore Mining) = Legal protection for foreign labor who occupied as a member of board of director in the article of association of limited liability company (case study: Supreme Court decree number 2772 K/PDT/2012 between PT Longfair Iron Mining against PT Mentaya Iron Ore Mining)