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First Author:
 
Vatthanamixay Chansomphou
Graduate School for Internatinal Development and Cooperation, Hiroshima University
vatthanamixay@hiroshima-u.ac.jp
 
1-5-1 Kagamiyama
Higashi-Hiroshima, 739-8529, Japan
 
 
 

Second Author:

Masaru Ichihashi
Graduate School for Internatinal Development and Cooperation, Hiroshima University
ichi@hiroshima-u.ac.jp
 
1-5-1 Kagamiyama
Higashi-Hiroshima, 739-8529, Japan