by - $11.00
by Indra Darmawan, S.E $7.00
by Uken Junaedi $5.77
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $9.00
by Prof. Dr. Sondang P. Siagian, M.P.A $7.00
by Mulayadi Subri $7.00