by Adam & Jessica Kuper $45.00
by J.H. Tarumetor Tairas $9.00
by Denise Lardner $9.00
by Sumadi Suryabrata $11.00
by S. Wibowo $13.00
by Aziz Alimul $7.00
by Soedarmo, Sumarmo Poorwo $6.00
by Prof. Dr. Ir. Ali Khomsan $11.00
by Fatima Memisi $6.00
by Ir. Endar Sugiarto, B.A $6.00
by Ir. M. Lies Suprapti $6.00
by Dr. P. A. van Der Weij $7.00