Sadsad, B. D. (1974). Effective business psychology for Filipino students [microform]. Photoduplication Service.
Chicago-viite (17. p.)Sadsad, Brigido Dabu. Effective Business Psychology for Filipino Students [microform]. Quezon City: Photoduplication Service, 1974.
MLA-viite (9. p.)Sadsad, Brigido Dabu. Effective Business Psychology for Filipino Students [microform]. Photoduplication Service, 1974.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.