by Drs. H. Farozin $6.00
by Drs. Mustofa Yani J.P $7.00
by Dr. Lijan Poltak Sinambel, M.M., M.Pd., dkk $9.00
by Ir. Mul Muyani Sutedjo $6.00
by DR. M.N. Bustan $7.00
by Rineka Cipta $12.00