by Ny. Susmayati, B.A $7.00
by Sagimun MD $6.00
by M. Ghufron H. Kordi K $9.00
by Drs. A. Munir $7.00
by Prof. Dr. Sondang P. Siagian, M.P.A $11.00
by George A.M. Farland $9.00