by Abdul Hakim G.N, S.H $6.00
by Henry Simamora, S.E $18.00
by Samekto, S.S., M.A $7.00
by Prof. DR. Koentjaraningrat $9.00
by Drs. Sudiyo $7.00
by Ajip Rosidi $7.00
by - $11.00