by Donald L. Levene & John L. Provan, MD $5.00
by Ir. C. Totok Sutrisno $6.00
by Drs. Djalinus Syah $9.00
by Reeves $13.00
by M.A. Hendirsen $6.00
by S. Wibowo $13.00
by Dr. Soegeng Santoso, M.Pd dan Dra. Anne Lies Ranti., M.Pd $9.00
by Sudradjat $7.00
by Dr. Marinus Telaumbanua, OFM Cap $7.00