23 | International Conference on Recent Advance in Business Social Sciences and knowledge Management, (Shanghai China ) |
30 | 2nd International Conference on Recent Developments in Social Sciences , Business, Management and Humanities Research (Shanghai China ) |
27 | 2nd International Conference on Current Innovations in Business, Management and Social Sciences Research (Shanghai China ) |
21 | Recycling 2019 (Beijing China ) |
21 | Battery Forum and Energy Storage Technologies 2019 (Beijing China ) |