Triệu, M. T. (2008). The impacts of visual aids on fostering high school students' motivation in learning and treating their misuse of spatial english prepositions: M. A. Thesis: Major : Principles and methodology in english language education. Cần Thơ: Trường Đại học Cần Thơ.
শিকাগো স্টাইলে সাইটেশনTriệu, Minh Tâm. The Impacts of Visual Aids On Fostering High School Students' Motivation in Learning and Treating Their Misuse of Spatial English Prepositions: M. A. Thesis: Major : Principles and Methodology in English Language Education. Cần Thơ: Trường Đại học Cần Thơ, 2008.
এমএলএ সাইটেশনTriệu, Minh Tâm. The Impacts of Visual Aids On Fostering High School Students' Motivation in Learning and Treating Their Misuse of Spatial English Prepositions: M. A. Thesis: Major : Principles and Methodology in English Language Education. Cần Thơ: Trường Đại học Cần Thơ, 2008.