by Dr. Alex I. Suwandi, Pr. $4.00
by Aziz Alimul $9.00
by Ir. M. Lies Suprapti $6.00
by Ir. Sri Umiyati Sumeru & Dra. Suzy Anna $6.00
by $9.00
by Prof. Dr. dr. Siti A. Boediardja, dr. Titi Lestari Sugito $6.00