Gaya APA
Checkland, P. (1999).
Soft systems methodology: a 30-year retrospective (-).
(4) Organisasi Perusahaan: Teo:
Makmur Tanjung Lestari.
Gaya MLA
Checkland, P..
Soft systems methodology: a 30-year retrospective.
-
(4) Organisasi Perusahaan: Teo:
Makmur Tanjung Lestari,
1999.
Text.