by Edgar Morin $6.00
by Cepi Triatna, S.Pd $7.00
by J. I. G. M. Drost, SJ $7.00
by Prof. Dr. S. Nasution, M.A. $7.00
by Drs. H. Moh. Pabundu Tika, M.M $7.00
by Muhibin Syah $11.00