TY  - JOUR
TI  - Study the Effect of  Teaching Problem-Solving Skill on  First Year High School Male Students’ Acheivement in Sonqor City in academic year(2010-2011)
JO  - Educational Administration Research
VL  - 3
IS  - 9
SP  - 117
EP  - 134
PY  - 2011
DO  - 
ER  -