Dumadag, L. S. (1994). Problem comprehension of senior high school students in Zamboanga City.
Lua i Stíl Chicago (17ú heag.)Dumadag, Leonardo S. Problem Comprehension of Senior High School Students in Zamboanga City. 1994.
Lua MLA (9ú heag.)Dumadag, Leonardo S. Problem Comprehension of Senior High School Students in Zamboanga City. 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.