Harper, A. E. (1992). Preparing Objective Examinations: A Handbook For Teachers, Students And Examiners. Prentice-Hall of India.
Chicago-viite (17. p.)Harper, A. Edwin. Preparing Objective Examinations: A Handbook For Teachers, Students And Examiners. New Delhi: Prentice-Hall of India, 1992.
MLA-viite (9. p.)Harper, A. Edwin. Preparing Objective Examinations: A Handbook For Teachers, Students And Examiners. Prentice-Hall of India, 1992.
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