Professor Dr. Poom Kumam visited Free University of Bolzano-Bozen, at Bolzano, Italy by invited of Professor Dr. Antonio Liotta, with Professor Dr. Ovidiu Bagdasar Dimitri from University of Derby, UK, for make collaboration and presentation our joint project on July 11-16, 2022.

Professor Dr. Antonio Liotta, Free University of Bolzano-Bozen, at Bolzano, Italy also with my friend Professor Dr. Ovidiu Bagdasar Dimitri from University of Derby, UK and my teacher Professor Dr. Suthep with my two closed friends Dr. Rabian Wangkeeree & Dr. Narin Petrot from Naresuan University when we are visited Bolzano on 11-16 July, 2022.