(1) Department of Socio-Economical Geography, Faculty of Geography and Ecology, Samarkand State University, Samarkand 140104, Uzbekistan ,
(2) Department of Physical and Economical Geography, Institute of Natural Sciences, L.N. Gumilyov Eurasian National University, Astana 010000, Kazakhstan ,
(3) Department of Socio-Economical Geography, Faculty of Geography and Ecology, Samarkand State University, Samarkand 140104, Uzbekistan ,
(4) Bishkek State University named after K. Karasaev, Bishkek 720044, Kyrgyzstan ,
(5) Department of Geography, Faculty of Natural Sciences and Medicine, Navoi State University, Navoi 210100, Uzbekistan ,
(6) Department of Geography, Faculty of Natural Sciences, Samarkand State Pedagogical Institute, Samarkand 140104, Uzbekistan
(1) Universitas Diponegoro, Prof. Sudarto SH Street, Tembalang, Semarang, Indonesia ,
(2) Universitas Diponegoro, Prof. Sudarto SH Street, Tembalang, Semarang, Indonesia ,
(3) Universitas Diponegoro, Prof. Sudarto SH Street, Tembalang, Semarang, Indonesia ,
(4) Universitas Diponegoro, Prof. Sudarto SH Street, Tembalang, Semarang, Indonesia ,
(5) Universitas Diponegoro, Prof. Sudarto SH Street, Tembalang, Semarang, Indonesia ,
(6) University of Heidelberg and Scientific Director of the Heidelberg Institute for Geoinformation Technology (HeiGIT gGmbH), Room 109, Im Neuenheimer Feld 348, 69120 Heidelberg, Germany