by Prijono Tjiptoherijanto, S.E, M.A, Ph.D $7.00
by Evan Pritchard $7.00
by Richard A. Bilas $13.00
by Julius R. Latumaerissa, S.E., M.M $7.00
by Veithzal Rivai $26.00
by Rafael Raga Maran $9.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $7.00