by Ollen Burger Terj. Budi Sucahyono $12.00
by Prof. Drs. S. Pamudji, M.P.A $9.00
by LSM $9.00
by Dr. H. Hamzah B. Uno, M.Pd $7.00
by Laurence D. Ackerman $9.00
by Martin Staniland $9.00