Yurisdiksi ICSID sebagai forum penyelesaian sengketa penanaman modal asing; studi kasus ICSID award on jurisdiction no ARB/ 07/ 3 dalam perkara Pemda Kaltim melawan PT. Kaltim Prima Coal dkk = ICSID jurisdiction as the foreign investment dispute settlement forum; case study ICSID award on jurisdiction no ARB/ 07/ 3 in the proceeding between GPEK v. PT. Kaltim Prima Coal and others