by Sutarni M. Soerjowinoto $6.00
by Murdifin Haming, S.E., M.Si & Dr. Mahfud Numajamuddin, S.E., M.M $0.00
by Ir. Eddy Afrianto & Ir. Evi Liviawaty $7.00
by Ir. Mul Muyani Sutedjo $7.00
by Prof. Dr. Sudarwan Danim $11.00
by Drs. Daryanto $7.00