Tian, Xiaoming, <p><em>School of Humanities and Foreign Languages, Xi’an University of Posts and Telecommunications, Xi’an 710121, China</em></p>
Tilakasiri, S.L., Department of Geography and Environmental Management, University of Ilorin, Ilorin, Nigeria
Toapanta-Mendoza, E.O., National University of Loja, Ecuador

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