by Ir. Hatta Sunanta, B.Sc., MS
$5.00

by Miller, Mary Susan, Ph.D
$0.00

by AL. Andang Listya Binawan, SJ (Penyunting)
$6.00

by Bernadetta Sri Lusiani, dkk.
$7.00

by H. Rahmat Rukmana
$6.00

by Dr. Al. Purwa Hadiwardoyo, MSF.
$3.00