4th ICOLET 2019 London
15th ICLEHI 2019 London
5th IMELT 2019 Kuala Lumpur
15th ICLLCE 2019 Kuala Lumpur
15th ICLICE 2019 Ho Chi Minh City
4th IRCMALS 2019 Ho Chi Minh City
3rd ICOLET 2019 Bangkok
14th ICLEHI 2019 Bangkok
4th IMELT 2019 Kuala Lumpur
14th ICLLCE 2019 Kuala Lumpur