by Thomas Ballantine Irving $6.00
by Sofyan Syafri Harahap $7.00
by Drs. Ng. Phillips $9.00
by Mansyur Semma $18.00
by Dr. Ir. Kemas Ali Hanafiah, M.S., dkk $7.00
by Abu Abdillah Muhammad Ibn Yusuf Al-Sanusi $6.00