by Johannes Lim, Ph.D., CPC $11.00
by Tim Boga GPU $7.00
by Abdul Tawwab Yusuf $5.00
by Entik Dewabrata $11.00
by Prof. Dr. Zuhal M.Sc.EE & Ir. Zhanggischan $36.00
by Erich Segal $7.00
by John Dean $9.00