Olli, M., & Saarelainen, V. (1996). Developing a language laboratory test or oral proficiency for the 9th form of the comprehensive school.
Chicago-viite (17. p.)Olli, Merja, ja Virpi Saarelainen. Developing a Language Laboratory Test or Oral Proficiency for the 9th Form of the Comprehensive School. Jyväskylä, 1996.
MLA-viite (9. p.)Olli, Merja, ja Virpi Saarelainen. Developing a Language Laboratory Test or Oral Proficiency for the 9th Form of the Comprehensive School. 1996.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.