by Bambang Widjanarko $6.00
by Ir. H. Rahmat Rukman, MBA $6.00
by Prof. dr. D. Bachtiar Lubis, dr. Sylvia D. Elvira $7.00
by Drs. G. Kartasapoetra $7.00
by Fajar Junaedi $9.00
by $9.00