Gaya APA
Waring, Alan. (1996).
Practical systems thinking .
Singapura:
International Thompson Business Press.
Gaya Chicago
Waring, Alan.
Practical systems thinking.
Singapura:
International Thompson Business Press,
1996.
Buku.
Gaya MLA
Waring, Alan.
Practical systems thinking.
Singapura:
International Thompson Business Press,
1996.
Buku.
Gaya Turabian
Waring, Alan.
Practical systems thinking.
Singapura:
International Thompson Business Press,
1996.
Buku.