by Drs. Sudarsono, S.H., M.Si, dkk $16.00
by Abu. Hudzaifah Ibrahim $7.00
by Kusnadi $6.00
by Drs. Amirul Hadi $7.00
by Drs. H. Burhanuddin Salam, M.M $7.00
by Tony Buzan $9.00