TY - GEN AU - Lamiaa Ahmed Abdelhameed AU - Helmi Aboulfetouh , AU - Mariam Osman , TI - Persistent types of spelling errors : : A study on spelling errors in the secondary and tertiary stages / PY - 1997/// CY - Cairo : PB - Lamiaa Ahmed Abdelhameed , N1 - Thesis(M.A.) - Cairo University - Faculty of Arts - Department of English UR - http://172.23.153.220/th.pdf ER -