A GRAVITY MODEL ANALYSIS OF THE DEMAND FOR PUBLIC COMMUNICATION*
1969 ◽
Vol 9
(3)
◽
pp. 459-470
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1998 ◽
Vol 50
(1)
◽
pp. 57-70
◽
2015 ◽
Vol 03
(08)
◽
pp. 114-122
◽
2012 ◽
pp. 113-117
2019 ◽
Vol 55
(11)
◽
pp. 2544-2565
◽
2014 ◽
Vol 02
(11)
◽
pp. 138-148
◽