by Bakhtiar, Numan Agus, Murisal $7.00
by Drs. D. Ketut Sukardi $9.00
by Ir. Abbas Siregar Djarijah $6.00
by Dr. Ir. Muhammad Rasyaf, MS $6.00
by Sjadzali, H. Munawir $5.00
by M. Eksan $7.00