Newsom, David D.
Angkasa, 1996
Buku Teks
Leifer, Michael
Gramedia, 1989
Buku Teks
Prawirasaputra, Sumpana
Remadja Karya, 1984
Buku Teks
Mohammad Hatta, 1902-1980
Tintamas, 1953
Buku Teks
Hasjim Djalal, 1934-
Centre for Strategic and International Studies, 1997
Buku Teks