by Asvi Warman Adam $4.80
by Oppusunggu, H.M.T $5.00
by Prof. DR. S.P. Siagian, M.P.A $9.00
by ISEI $56.00
by Vincent Gaspersz $24.00
by Drs. Basir Barthos $9.00
by Lanny Soechan $6.00
by Frank Bettger $9.00