by Siti Rahayu - Titiek F. Djaafar
$5.00

by Dr. Ir. Muhammad Rasyaf, MS
$11.00

by H. Rahmat Rukmana
$5.00

by Ir. G. Djatmiko Sudarmo & Ir. S. J. Edy Purnomo
$12.00

by ISEI
$18.00

by William A. Meninger, OSCO.
$6.00