by Dr. Ir. Muhammad Rasyaf, MS $6.00
by Djoehana Setyamidjaja, M.Ed $7.00
by Drs. Sriyono, dkk $9.00
by Dr. Budi Tri Akoso $11.00
by Prof. Dr. Soekartawi $7.00
by Ir. Yushinta Fujaya, M.Si $7.00