by James Champy $13.00
by - $16.00
by Faqihuddin Abdul Kadir $5.00
by Prof. J. Suprapto, M.A. APU $9.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $6.00
by Prof. Dr. S. Nasution, M.A. $7.00
by T. Tarmizi, Lepi $6.00