APA-referens (7:e uppl.)

Umadhay, A. Economic Issues in Regional Development in Western Visayas . [article].

Chicago-referens (17:e uppl.)

Umadhay, Alex. Economic Issues in Regional Development in Western Visayas . [article].

MLA-referens (9:e uppl.)

Umadhay, Alex. Economic Issues in Regional Development in Western Visayas . [article].

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.