by Redaksi Rineka Cipta $7.00
by George A.M. Farland $9.00
by Ir. H. Rahmat Rukmana & Hj. Yuyun Yuniarsih, SP., MBA., MM. $6.00
by Drs. CST. Kansil, S.H $12.00
by Darmono $6.00
by Cahyo Wahyudi dkk $9.00