by Prof. dr. Arjatmo Tjokronegoro, Ph.D $5.00
by Juni Prianto L.A., Tjahaya P.U., dkk $30.00
by Dandeker M.M. dan K.N. Sharma $9.00
by $9.00
by Prof. Dr. dr. H. Dadang Hawari, Psikiater $9.00
by Louis Rosenthal $6.00