by Ir. Bambang Cahyono $6.00
by Suharso, A.S.P $6.00
by Joos van Vugt $7.00
by Drs. Zainal Abidin $7.00
by Dr. H. Miftah Faridl $11.00
by Milton Chen, Ph.D. $9.00
by P. Joko Subagyo, S.H $7.00