by Myria, OSF. $4.00
by Abdul Mujib, Jusuf Mudzakir $9.00
by Drs. M. Djohan Qoyim $5.00
by Dr. Ir. M. Imadduddin Abdul Rahim, M.Sc $7.00
by Andi Rosadisastra, M.A. $7.00
by Aisyah M. Alkalali $5.00
by $30.00