Hedges, Roy
Glorier business library : collecting a debt
Glorier International, 1999
 Buku Referensi
Amos, Julie-Ann
Glorier business library : managing yourself
Glorier International, 1999
 Buku Referensi
Jones, Graham
Glorier business library : using the internet
Glorier International, 2001
 Buku Referensi
Hedges, Roy
Glorier business library : managing credit
Glorier International, 1999
 Buku Referensi
Dobson, Ann
Glorier business library : writing business letter
Grolier International Inc., 1999
 Buku Referensi