by Drs. Robinson Tarigan $9.00
by Nur Syam $12.00
by P. A. Elliot $9.00
by Radiks Purba $13.00
by Mulayadi Subri $7.00
by Prof. Yogianto Hartono, MBA $9.00
by Haideh Moghissi $9.00
by Dr. Ir. Muhammad Rasyaf, MS $6.00
by Fauzan Muttaqien $7.00
by Ir. H. Rahmat Rukmana, MBA., MSc. $5.00
by Dr. Paul Suparno, SJ. Dkk $6.00