by Pandji Anoraga, S.E, M.M $6.00
by Dr. Musfir Husain al-Jahrani $6.00
by Tony Buzan $16.00
by Dr. Yusuf al-Qaradhawi $5.00
by Sal Severe, Ph.D. $13.00
by Prof. Dr. Prayitno $9.00
by Raswari $7.00
by Howard Clinebell $13.00
by $4.00
by $6.00
by Thomas A. N. S $6.00
by Julius Pour $12.97