APA-viite

Nguyễn Bích Diệu. (2009). An Investigation into collaborative learning to enhance speaking skill among the first and second year students at English department Danang college of foreign languages.

Chicago-tyylinen lähdeviittaus

Nguyễn Bích Diệu. An Investigation Into Collaborative Learning to Enhance Speaking Skill Among the First and Second Year Students At English Department Danang College of Foreign Languages. 2009.

MLA-viite

Nguyễn Bích Diệu. An Investigation Into Collaborative Learning to Enhance Speaking Skill Among the First and Second Year Students At English Department Danang College of Foreign Languages. 2009.

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