Gaya APA
Kushel, Gerald. (1995).
Meraih puncak prestasi = reaching the peak performance zone .
Jakarta:
Halirang.
Gaya Chicago
Kushel, Gerald.
Meraih puncak prestasi = reaching the peak performance zone.
Jakarta:
Halirang,
1995.
Text.
Gaya MLA
Kushel, Gerald.
Meraih puncak prestasi = reaching the peak performance zone.
Jakarta:
Halirang,
1995.
Text.
Gaya Turabian
Kushel, Gerald.
Meraih puncak prestasi = reaching the peak performance zone.
Jakarta:
Halirang,
1995.
Print.