by Drs. Djalinus Syah $9.00
by Prof. DR. Abu Su'ud $12.00
by Sudarsono Soedomo $5.04
by Prijono Tjiptoherijanto, S.E, M.A, Ph.D $7.00
by Harry Simons $13.00
by Jeff Zabin & Gresh Brebach $13.00