Keabsahan pencabutan kuasa direksi secara sepihak dalam perseroan terbatas yang didirikan berdasarkan penanaman modal asing (studi kasus putusan Mahkamah Agung Republik Indonesia nomor 1675 K/Pdt/2012) = The legality of uniterally power of attorney of the board of directors revocation in limited company established based on foreign investment (case study of Supreme Court of the Republic of Indonesia number 1675 K/Pdt/2012)