by Kartadjoemena, H.S $7.00
by Dr. H. Abuddin Nata, MA $6.00
by Lindholm, Richard W & Hartojo Wignjowijoto $7.00
by Siagian, P. $11.00
by Koestoer, Raldi Hendro $6.00
by Prof. Djaali $0.00