(2009). . Journal Management System, 6(1), 28-32. doi: 10.22034/iji.2009.17070
. "". Journal Management System, 6, 1, 2009, 28-32. doi: 10.22034/iji.2009.17070
(2009). '', Journal Management System, 6(1), pp. 28-32. doi: 10.22034/iji.2009.17070
. Journal Management System, 2009; 6(1): 28-32. doi: 10.22034/iji.2009.17070


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