(2020). . , 6(1), 135-147. doi: 10.22059/poll.2019.284612.642
. "". , 6, 1, 2020, 135-147. doi: 10.22059/poll.2019.284612.642
(2020). '', , 6(1), pp. 135-147. doi: 10.22059/poll.2019.284612.642
. , 2020; 6(1): 135-147. doi: 10.22059/poll.2019.284612.642


Journal Management System. Powered by Sinaweb