Ade-Ojo, Eunice Aduke A sociolinguistic study of reading difficulties among National and Higher National Diploma Students of Kaduna Polytechnic by Eunice Aduke Ade-Ojo - Zaria Department of English, Ahmadu Bello University 1999 - viii, 85 leaves: ill.,diagr.,tables Bibliography : leaf 80-85 Subjects--Personal Names: English language in Nigeria