by Ir. Indriyanto $9.00
by Prof. Djafaruddin $7.00
by Ir. Setijo Pitojo $6.00
by Ilhami Bisri, S.H., M.Pd. $7.00
by Don W.S., Threes Emir, dan Cherry H $7.00
by H. Ahmadi Isa $6.00