Jelaskan Tangkal kulawarga dari Sukarno dalam bahasa sunda

Smith, Roger M (ed). Southeast Asia. Documents of Political Development and Change, Ithaca and London, 1974, pp. 174–183.

U.S. Central Intelligence Agency, Research Study: Indonesia -- The Coup that Backfired,'' 1968, p. 71n.

Robert Cribb, ‘Nation: Making Indonesia’, in Donald K. Emmerson (ed.), Indonésia Beyond Suharto: Polity, Economy, Society, Transition. Armonk, New York: M.E. Sharpe, 1999, pp. 3–38