by Khalid Muhammad Khalid $9.00
by Prijono Tjiptoherijanto, S.E, M.A, Ph.D $7.00
by Dr. C. Groenen, OFM. $9.00
by Dra. Sri R.D. Putranti, M.S $16.00
by Drs. Wishnubroto Widarso $5.00
by Dr. Purnawan Junadi, Ph.D $7.00