by Dr. John Wong $9.00
by Murdifin Haming, S.E., M.Si & Dr. Mahfud Numajamuddin, S.E., M.M $0.00
by Susilowati $13.00
by dr. Boyke Dian Nugraha $7.00
by Prof. Dr. Slamet Muljana $11.00
by Prof. Dr. Sondang P. Siagian, M.P.A $11.00
by Thabrani $12.00