4:30 PM - 4:45 PM
*Erdenebaatar Dashdondog1, Begzsuren Tumendemberel2, Turtogtokh Tumenjargal3, Ulam-Orgikh Duger4 (1.Senior Lecturer of the National University of Mongolia, 2.Hokkaido University, 3.Researcher National University of Mongolia, 4.Professor National University of Mongolia)