by Julius R. Latumaerissa, S.E., M.M $9.00
by Hines, William W.K. Dougles E. Montgomery $11.00
by Indra Darmawan, S.E $7.00
by - $11.00
by Winarno Msi $3.17
by Prof. Dr. H. Muhaimin, M.A $11.00