Perlindungan bagi para pemegang saham yang belum tercatat pada daftar pemegang saham akibat pengabaian kewajiban pemeliharaan daftar pemegang saham oleh organ perseroan: studi kasus putusan Mahkamah Agung Republik Indonesia nomor 2845 K/Pdt/2017 = Legal protection for shareholders which have not been registered in the shareholders register due to the neglicence of the organ of the company on the obligation to maintain the shareholders register: case study on Supreme Court decision number 2845 K/Pdt/2017