by MarkPlus & Co $16.00
by Hafield Cangara $7.00
by Drs. Ary H. Gunawan $7.00
by Dr. William Hendricks $6.00
by Julius R. Latumaerissa, S.E., M.M $7.00
by Drs. Thohir Luth, M.A., dkk $6.00