Zamboanga del Norte (Province) Provincial Development Staff. (1975). Five year development program, 1976-1980 Comprehensive plan: Province of Zamboanga del Norte. s.n.
Lua i Stíl Chicago (17ú heag.)Zamboanga del Norte (Province) Provincial Development Staff. Five Year Development Program, 1976-1980 Comprehensive Plan: Province of Zamboanga Del Norte. [S.l: s.n, 1975.
Lua MLA (9ú heag.)Zamboanga del Norte (Province) Provincial Development Staff. Five Year Development Program, 1976-1980 Comprehensive Plan: Province of Zamboanga Del Norte. s.n, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.