by Ir. Setijo Pitojo
$12.00

by Prof. Dr. J. Winardi, SE
$9.00

by Nicola A. Ziadeh
$6.00

by Kamaruddin Ahmad., S.E
$11.00

by H. Rahmat Rukmana & Hj. Yuyun Yuniarsih, SP., MBA., MM
$6.00

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