by $4.00
by Ir. H. Rahmat Rukmana - Hj. Yuyun Yuniarsih, BSc. $6.00
by Budi Widianarko & Andreas Pandiangan $11.00
by Dr. P. J. Suwarno, S.H $13.00
by Ibnu Taimiyah, Terj. Halimuddin, S.H $9.00
by Drs. Zainal Abidin $9.00
by Ir. Setijo Pitojo $12.00