by Ir. H. Rahmat Rukmana - Hj. Yuyun Yuniarsih, BSc. $5.00
by Ir. Lisdiana Fachruddin $5.00
by Bambang Agus Murtidjo $5.00
by Thomas Sri Widodo $9.00
by Nursalam $12.00
by Turban, Rainer $26.00