by Juniver Girsang $9.00
by Ir. Rabiatual Adawyah, M.P $7.00
by - $9.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $12.00
by Dr. Ismail Abdul Mutalib Al-Khatib $5.00
by Jack Trout dan Steven Rivkin $6.00
by Geoffrey Robinson $18.00
by Sanusi, Bachrawi $5.00
by Hasan Muhammad Ayub $6.00
by $13.00
by Nursalam $7.00