of;
Civil;
and;
Structural;
Engineering,;
Universiti;
Kebangsaan;
Malaysia,;
Bangi,;
Selangor;
43600,;
Malaysia;
of;
Civil;
Engineering,;
Polytechnic;
Negeri;
Semarang,;
J1.;
Sudarto;
SH,;
Tembalang;
50275,;
Semarang,;
Indonesia;