Zapp, Mike
University of Luxembourg; Porte des Sciences, Esch-sur-Alzette, Luxembourg
Hartaman, Nursaleh
Universitas Muhammadiyah Makassar, Indonesia
Tadjine, Farida
University of Kasdi Merbah Ouargla (UKMO), Algeria
Harakan, Ahmad
Universitas Muhammadiyah Makassar, Indonesia
Turkamani, Hojjat Salimi
Azarbaijan Shahid Madani University, Tabriz, Iran
Beidollahkhani, Arash
Ferdowsi University of Mashhad, Iran
Grebenyuk, Aleksandr
Lomonosov Moscow State University, Moscow, Russia
Gasparishvili, Alexander
Lomonosov Moscow State University, Moscow, Russia; RUDN University, Moscow, Russia
Abate, Daniel W.
Ethiopian Technical University, Department of Social Science, Addis Ababa, Ethiopia
Unger, Stephan
Saint Anselm College, Manchester, New Hampshire, USA