by Prof. Dr. J. Winardi, SE $11.00
by Johannes Lim, Ph.D., CPC $11.00
by - $9.00
by Ir. Hieronymus Budi Santoso $5.00
by Institut Studi Arus Informasi $12.00
by Agung Kristiawan $9.00
by Ashadi Siregar & I Made Suarjana $6.00