Krowinska, A., & Backhaus, C. (2023). Digital content marketing: Creating value in practice (First Edition.). United Notion.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিKrowinska, Agata, এবং Christof Backhaus. Digital Content Marketing: Creating Value in Practice. First Edition. New york: United Notion, 2023.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিKrowinska, Agata, এবং Christof Backhaus. Digital Content Marketing: Creating Value in Practice. First Edition. United Notion, 2023.