Public Force of Costa Rica (English Wikipedia)

Kemp, Ian (March 2007). "Lightweight Firepower" (PDF). Asianmilitaryreview.com - Asian Military Review. Archived from the original (PDF) on 7 July 2011. Retrieved 18 April 2010.

bicc.de

Bonn International Center for Conversion; Bundeswehr Verification Center. "MP UZI". SALW Guide: Global distribution and visual identification. Archived from the original on 31 August 2018. Retrieved 31 August 2018.

Central America Report. Vol. 24. Inforpress Centroamericana. 1997. p. 33.
Supica, Jim; Nahas, Richard (2007). Standard Catalog of Smith & Wesson. Iola, Wisconsin: F+W Media, Inc. pp. 141–143, 174, 210–211. ISBN 978-0-89689-293-4.^{[permanent dead link‍]}

"Customers / Weapon users". Colt Defense Weapon Systems. Archived from the original on 2 September 2011.

El Espíritu del 48. "Abolición del Ejército". Retrieved 2008-03-09.{{cite web}}: CS1 maint: numeric names: authors list (link) (Spanish)

"Latin American Light Weapons National Inventories". Federation of American Scientists. Archived from the original on October 22, 2012. Retrieved November 30, 2012. Citing Gander, Terry J.; Hogg, Ian V., eds. (1995). Jane's Infantry Weapons, 1995–1996 (21st ed.). Jane's Information Group. ISBN 9780710612410. OCLC 32569399.

"Servicio Nacional de Guardacostas". Ministerio de Seguridad Pública Costa Rica (in Spanish). Archived from the original on 4 August 2020. Retrieved 25 May 2020.

"Servicio Nacional de Guardacostas". Ministerio de Seguridad Pública Costa Rica (in Spanish). Archived from the original on 4 August 2020. Retrieved 25 May 2020.
"Latin American Light Weapons National Inventories". Federation of American Scientists. Archived from the original on October 22, 2012. Retrieved November 30, 2012. Citing Gander, Terry J.; Hogg, Ian V., eds. (1995). Jane's Infantry Weapons, 1995–1996 (21st ed.). Jane's Information Group. ISBN 9780710612410. OCLC 32569399.
Bonn International Center for Conversion; Bundeswehr Verification Center. "MP UZI". SALW Guide: Global distribution and visual identification. Archived from the original on 31 August 2018. Retrieved 31 August 2018.
"Customers / Weapon users". Colt Defense Weapon Systems. Archived from the original on 2 September 2011.
Kemp, Ian (March 2007). "Lightweight Firepower" (PDF). Asianmilitaryreview.com - Asian Military Review. Archived from the original (PDF) on 7 July 2011. Retrieved 18 April 2010.

"Latin American Light Weapons National Inventories". Federation of American Scientists. Archived from the original on October 22, 2012. Retrieved November 30, 2012. Citing Gander, Terry J.; Hogg, Ian V., eds. (1995). Jane's Infantry Weapons, 1995–1996 (21st ed.). Jane's Information Group. ISBN 9780710612410. OCLC 32569399.