by Tarwoto $9.00
by A. W. van den Ban & H. S. Hawkins $12.00
by Ir. H. Rahmat Rukmana, MBA $5.00
by Thabrani $12.00
by N. Edy Soetanto, BE. $5.00
by Heinz Frick & Petra Widmer $5.00
by J. Stallard, Terj. Drs. Hasymi Ali $11.00