Gaya APA
Ha, Y, S., SEO, J, S. (2017).
An analysis of the competitiveness of major liner shipping companies .
Korea:
Elsevier.
Gaya MLA
Ha, Yeong, Seok., SEO, Jung, Soo.
"An analysis of the competitiveness of major liner shipping companies".
Korea:
Elsevier,
2017.
Article.