by Kusnadi $7.00
by Indra Darmawan, S.E $7.00
by Prof. Dr. Sondang P. Siagian, M.P.A $9.00
by Sheerah Hakin $13.00
by Ir. M. Iqbal Hasan $12.00
by Anand Krishna $6.00
by RUA Zainal Fanani $6.00