by Srivastava, A.C. $6.00
by F. Suryatmo $6.00
by Barry Wollard $11.00
by Drs. Daryanto $6.00
by Stallings $18.00
by Ir. H. Rahmat Rukmana, MBA., MSc. $5.00
by WK $12.00
by Abas as-Sisiy $6.00
by Albertin Hoesni $6.00
by - $16.00
by YUNITA TRI DAMAYANTI $6.00