by Ir. Budi Samadi $6.00
by F. A. Suwandi Wihardjo, B. Sc $6.00
by Dr. Budi Tri Akoso $11.00
by Dennis & Matt Linn $4.00
by Bernadetta Sri Lusiani, dkk. $7.00
by Prof. Dr. Komarudin Hidayat $5.00