Penggayaan APA
SELK, Jason. (2012).
Executive toughness : .
New York:
McGraw Hill.
Chicago Style
SELK, Jason.
Executive toughness :.
New York:
McGraw Hill,
2012.
Buku.
MLA Style
SELK, Jason.
Executive toughness :.
New York:
McGraw Hill,
2012.
Buku.
Turabian Style
SELK, Jason.
Executive toughness :.
New York:
McGraw Hill,
2012.
Buku.