(2010). The Effect of Using Personalized System of Instruction ( Keller Plan ) in the Achievement of Students in Statistic Subject. , 23(6), 73-100.
. "The Effect of Using Personalized System of Instruction ( Keller Plan ) in the Achievement of Students in Statistic Subject". , 23, 6, 2010, 73-100.
(2010). 'The Effect of Using Personalized System of Instruction ( Keller Plan ) in the Achievement of Students in Statistic Subject', , 23(6), pp. 73-100.
The Effect of Using Personalized System of Instruction ( Keller Plan ) in the Achievement of Students in Statistic Subject. , 2010; 23(6): 73-100.