by Sitor Situmorang $7.00
by $20.00
by Soedharyo Soimin, S.H. $6.00
by Ir. A. G. Kartasapoetra $6.00
by Nursalam $7.00
by Sabrur R. Soenardi $6.00
by Gabriel A. Almond $13.00
by Abdoelmanap, Soerowo & T.H. Manurung $6.00
by Ir. G. Djatmiko Sudarmo & Ir. S. J. Edy Purnomo $11.00
by AB Susanto $6.00
by - $20.00
by A.R. Soetopo $5.00