Sadsad, B. D. (1974). Effective business psychology for Filipino students [microform]. Photoduplication Service.
Chicago-referens (17:e uppl.)Sadsad, Brigido Dabu. Effective Business Psychology for Filipino Students [microform]. Quezon City: Photoduplication Service, 1974.
MLA-referens (9:e uppl.)Sadsad, Brigido Dabu. Effective Business Psychology for Filipino Students [microform]. Photoduplication Service, 1974.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.