Kualifikasi penanaman modal oleh ICSID sebagai forum penyelesaian sengketa penanaman modal asing: studi kasus ICSID award on jurisdiction no. ARB/11/13 dalam perkara antara Rafat Ali Rizvi melawan Republik Indonesia = Qualification of investment by ICSID as the foreign investment dispute settlement forum: case study ICSID award on jurisdiction no.ARB/11/13/ in the matter between Rafat Ali Rizvi v the Republic of Indonesia