by - $5.00
by Rachmanto $6.00
by Drs. Mustaqim $7.00
by Dr. Thariq M.As-Suwaidan dan Ir. Faisal Umar Basyarahil $11.00
by Daniel Goleman $13.00
by Dr. Nico Syukur Dister, OFM. $8.00