by Dr. B. Siswanto Sastrohadiwiryo $9.00
by Dra. Sri Sundari HS., M.Pd $6.00
by Ir. Budi Rafitas $7.00
by Drs. Djalinus Syah $9.00
by Murray Raphel, Neil Raphel & Jenis S. Raye $13.00
by Richard Denny $7.00