Open Science Research Excellence
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. January 2018, vol. 133(1). 92 - 95[viewed 19 August 2019]. Available from: http://waset.org/publications/10008438.