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Siddiqui, M, H., Siddiqui, M, H. (). Encyclopedia of Educational Technology Volume 4: Distance Learning Technolgy in ... (cet. 1). New Delhi: APH Publishing Corporation.

Gaya MLA

Siddiqui, Mujibul, Hassan., Siddiqui, Mujibul, Hassan. "Encyclopedia of Educational Technology Volume 4: Distance Learning Technolgy in ...". cet. 1 New Delhi: APH Publishing Corporation, . Text.