by Drs. H. Hamdan Aini $9.00
by Prof. Dr. J. Winardi, SE $11.00
by Alfian $7.00
by Ir. H. Rahmat Rukmana - Hj. Yuyun Yuniarsih, BSc. $5.00
by - $6.00
by Ernalia Sri Bintang $8.00