by Ir. Kaslan A. Tohir $12.00
by Dra. M. Sri Sulastri Rifai, M.Pd $6.00
by Drs. SK. Bonar $7.00
by Drs. Heryando Palar $7.00
by Muhammad Abed Al-Jabiri $7.00
by Ernest Mariyanto $6.00