Karim Obeid, K. (2017). The impact of the proposed strategy in accordance with the objectives of science in achievement and some science operations at the second-grade middle students in chemistry. , 0(52), 141-170.
kamil Karim Obeid. "The impact of the proposed strategy in accordance with the objectives of science in achievement and some science operations at the second-grade middle students in chemistry". , 0, 52, 2017, 141-170.
Karim Obeid, K. (2017). 'The impact of the proposed strategy in accordance with the objectives of science in achievement and some science operations at the second-grade middle students in chemistry', , 0(52), pp. 141-170.
Karim Obeid, K. The impact of the proposed strategy in accordance with the objectives of science in achievement and some science operations at the second-grade middle students in chemistry. , 2017; 0(52): 141-170.