by Prof. Subowo, dr. M.Sc., Ph.D $9.00
by Guenther, Ernest $7.00
by Michael, P $11.00
by Pijper, G.F $5.00
by Tarwoto $9.00
by Harahap, Rustam Effendi $6.00
by Red. Tanwirul Afkar $9.00
by Drs. Sudarsono, S.H., M.Si, dkk $12.00
by - $5.00
by Barbie $7.00