by Thompson Susa $12.00
by John Kirvan $6.00
by Ir. Budi Samadi $6.00
by Ir. Hatta Sunanta, B.Sc., MS $5.00
by Ir. Lisdiana Fachruddin $5.00
by WK $12.00
by Regina Feby & Elcy Anastasia $7.00