ডঃ আৰু মাহমুদ. (1972). Counter Course: A handbook for course criti-. Penguins.
Tohutoru Kātū Chicago (17th ed.)ডঃ আৰু মাহমুদ. Counter Course: A Handbook for Course Criti-. Harmonds-: Penguins, 1972.
Tohutoro MLA (9th ed.)ডঃ আৰু মাহমুদ. Counter Course: A Handbook for Course Criti-. Penguins, 1972.
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