by Johanes Lim, Ph.D., CPC $9.00
by Leo Suryadinata $4.61
by Kunarjo $9.00
by Dr. M. Mursid $7.00
by Dra. Ninik Widiyanti $9.00
by Gustian Djuanda & Irwansyah Lubis $11.00
by Aziz Alimul $7.00