by Drs. Abdul Chaer dan Leonie Agustina $11.00
by Erwan Juhara $6.00
by Ir. AG. Kartasapoetra $9.00
by Drs. Ngadijo A.J $6.00
by Ny. Susmayati, B.A $7.00
by Indra Darmawan, S.E $7.00