(2009). Impact of the teaching-learning cycle in the second grade students gain an average of the concepts of scientific and academic achievement Dafiethen. , 5(38), 149-163.
. "Impact of the teaching-learning cycle in the second grade students gain an average of the concepts of scientific and academic achievement Dafiethen". , 5, 38, 2009, 149-163.
(2009). 'Impact of the teaching-learning cycle in the second grade students gain an average of the concepts of scientific and academic achievement Dafiethen', , 5(38), pp. 149-163.
Impact of the teaching-learning cycle in the second grade students gain an average of the concepts of scientific and academic achievement Dafiethen. , 2009; 5(38): 149-163.