Booth, John A.
Understanding central America
Westerview Press, 1993
 Buku Teks SO
Rodriguez, Mario
Central America / Mario Rodriguez
Prentice-Hall, 1965
 Buku Teks SO
Liss, Sheldon B.
Radical thought in central America
Westview Press, 1991
 Buku Teks SO
Woodward, Ralph Lee
Central America: a nation divided
Oxford University Press , 1985
 Buku Referensi
Political parties and democracy in central America
edited by Louis W. Goodman, William M. LeoGrande, Johanna Mendelson Forman
Westview Press, 1992
 Buku Teks SO