by M. Fuad, dkk $11.00
by Ir. Doli Siregar, M.Sc., FRICS., SVC $11.00
by Penyunting: Hadi Soesastro dan Iwan P. Hutajulu $0.00
by Koko Hidayat $6.00
by Janita $7.00
by Drs. Husein Umar, S.E., M.M., MBA $9.00
by Darsan, S.Pd. $8.00