El-Natoor, Khalaf Falah <br/><br/>
An experimental study of the relative effectiveness of a transformational approach and a structural approach in teaching the English progressive forms to non-native speakers of English 
Khalaf Falah El-Natoor 
 - Albany  State University of New York  1981 
 - 258 p. ; 20 cm. 
<br/><br/>Thesis (Ph.D) - State University of New York, 1981 
<br/><br/>p. 112-124 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching--Foreign students<br/>English language--Study and teaching--Foreign speakers