Bautista, O., Ordonez, V., & Sanyal, B. C. (1992). Change from a semester to a trimester system at the De La Salle University, Philippines. International Institute for Educational Planning.
Chicago-referens (17:e uppl.)Bautista, Oscar, Victor Ordonez, och Bikas C. Sanyal. Change from a Semester to a Trimester System at the De La Salle University, Philippines. Paris: International Institute for Educational Planning, 1992.
MLA-referens (9:e uppl.)Bautista, Oscar, et al. Change from a Semester to a Trimester System at the De La Salle University, Philippines. International Institute for Educational Planning, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.