Hill, Lance
The deacons for defense : armed resistance and the civil rights movement
University of North Carolina Press, 2004
 Buku Teks SO
Chavez, Joaquin Mauricio
Poets and prophets of the resistance: intellectuals and the origins of El Salvador's civil war
Oxford University Press, 2017
 eBooks
Abbott, Patrick L.
Natural disasters
McGraw-HIll, 2003
 Buku Teks
Abbott, Patrick L.
Natural disasters
McGraw-Hill, 2004
 Buku Teks SO
Abbott, Patrick L.
Natural disasters
McGraw-Hill, 2009
 Buku Teks SO