Felipe, A. I. (2003). The duty to assess learning. IN Educators speak [column]. Manila Bulletin.
Chicago-viite (17. p.)Felipe, Abraham I. "The Duty to Assess Learning. IN Educators Speak [column]." Manila Bulletin 2003.
MLA-viite (9. p.)Felipe, Abraham I. "The Duty to Assess Learning. IN Educators Speak [column]." Manila Bulletin, 2003.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.