Scott, Andrew M.
Political thought in America
Holt, Rinehart & Winston, 1959
 Buku Teks
Booth, John A.
Understanding central America
Westerview Press, 1989
 Buku Teks
Booth, John A.
Understanding central America
Westerview Press, 1993
 Buku Teks
Rodriguez, Mario
Central America / Mario Rodriguez
Prentice-Hall, 1965
 Buku Teks
Woodward, Ralph Lee
Central America: a nation divided
Oxford University Press , 1985
 Buku Referensi