Παραπομπή σε μορφή APA (7η εκδ.)

Dumadag, L. S. (1994). Problem comprehension of senior high school students in Zamboanga City.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Dumadag, Leonardo S. Problem Comprehension of Senior High School Students in Zamboanga City. 1994.

Παραπομπή σε μορφή MLA (9th εκδ.)

Dumadag, Leonardo S. Problem Comprehension of Senior High School Students in Zamboanga City. 1994.