Mohammad Amin Mozaheb and  Jalal Farzaneh Dehkordi and  Khojasteh Hosseinzadehpilehvar,  A CDA-Driven Study of World English Series Published by Cengage Heinle .   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
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    [viewed 08 May 2024]. Available from: https://publications.waset.org/pdf/10008438.