TY  - BOOK
AU  - Xavery,Beata
TI  - An investigation on the quality of chemistry textbooks in secondary schools under the 1991 textbook policy:  a case of Dar es Salaam region
AV  - THS EAF QD41.X38 
PY  - 2012///,
CY  - Dar es Salaam.
PB  -  : University of Dar es Salaam. 
KW  - Chemistry
KW  - Text books
KW  - Secondary schools
KW  - Dar es Salaam region
KW  - Tanzania
N1  - 
Includes bibliographical references
ER  -