Prieto, R. M. (1980). Cost-effectiveness of Philippine social insurance programs (GSIS/SSS): A simulation study, 1970-2000 [microform]. Photoduplication Service, University of the Philippines Library.
Lua i Stíl Chicago (17ú heag.)Prieto, Rosa Maria. Cost-effectiveness of Philippine Social Insurance Programs (GSIS/SSS): A Simulation Study, 1970-2000 [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1980.
Lua MLA (9ú heag.)Prieto, Rosa Maria. Cost-effectiveness of Philippine Social Insurance Programs (GSIS/SSS): A Simulation Study, 1970-2000 [microform]. Photoduplication Service, University of the Philippines Library, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.