International Academic Conference on Management, Economics and Marketing in Vienna, Austria 2022 (IAC-MEM in Vienna 2022) International Academic Conference on T
International Academic Conferences: Teaching, Learning and E-learning (IAC-TLEl 2018) and Management, Economics and Marketing (IAC-MEM 2018) and Engineering, Tr
International Academic Conferences: Global Education, Teaching and Learning (IAC-GETL 2018) and Management, Economics, Business and Marketing (IAC-MEBM 2018) an