by Prof. Abdur Rahman I Do'I, Ph.D $7.00
by M. Ghufron H. Kordi K $9.00
by Ir. AG. Kartasapoetra $9.00
by Drs. Daryanto $13.00
by Prof. J. Suprapto, M.A. APU $16.00
by Elise T. Sulistini, dkk $7.00