by Ir. Budi Samadi $6.00
by H. Rahmat Rukmana & Indra Mukti Harahap $5.00
by G. Siregar, Laksmi $6.00
by Supranto, J. $7.00
by AAK (Aksi Agraris Kanisius) $9.00
by Sutanto $5.00
by Mr. Drs. J.J.H. Brugingk; Alih Bahasa: Arief Sidharta, S.H. $6.00
by $9.00
by Aziz Alimul $7.00
by Dr. K.H. Didin Hafidhuddin, M.Sc $9.00
by Drs. Muhsin M.K. S.Ag, M.Sc $7.00