Pertanggungjawaban direksi terkait pelaksanaan pasal 50 dan pasal 51 Undang-Undang nomor 40 tahun 2007 tentang perseroan terbatas, berdasarkan prinsip-prinsip hukum bisnis = The official responsibility by the board of director in regards with the application of article 50 and article 51 of the Government Regulation number 40 the year of 2007 regarding the private limited company based on the principal of business law / Hisbullah Ashidiqi