Gaya APA
Ringland, Gill. (1998).
Scenario Planning: Managing for the Future .
London:
John Wiley & Sons.
Gaya Chicago
Ringland, Gill.
Scenario Planning: Managing for the Future.
London:
John Wiley & Sons,
1998.
Buku.
Gaya MLA
Ringland, Gill.
Scenario Planning: Managing for the Future.
London:
John Wiley & Sons,
1998.
Buku.
Gaya Turabian
Ringland, Gill.
Scenario Planning: Managing for the Future.
London:
John Wiley & Sons,
1998.
Buku.