by Drs. Syaiful Bahri Djamarah $7.00
by Sei H. Dt. Tombak Alam $6.00
by Ir. Suharto $11.00
by Indra Darmawan, S.E $7.00
by Lerbin R. Aritonang R. $9.00
by Drs. Sudarsono, S.H., M.Si, dkk $16.00