Gaya APA
Karagiannopoulos, G. et al (2005).
Fathoming Porter’s five forces model in the internet era (VOL. 7 NO. 6 2005).
United Kingdom:
Emerald Group Publishing Limited.
Gaya MLA
Karagiannopoulos, G.D. et al.
"Fathoming Porter’s five forces model in the internet era".
VOL. 7 NO. 6 2005
United Kingdom:
Emerald Group Publishing Limited,
2005.
Article.