by Prof. DR. Dr. Luh Ketut Suryani $9.00
by Greg Behrendt $11.00
by Mien R. Uno $30.00
by Tony Buzan $7.00
by Lois P. Frankel, Ph.D $12.00
by Asvi Warman Ardan $9.00
by Bagus Tkwin, dkk $9.00