https://www.peopleperhour.com/freelancer/marketing-seo/jarna-khisa-seo-link-building-expert-xjnnxzz
Jarna Khisa - SEO & Link Building Expert - PeoplePerHour
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https://www.utu.fi/en/people/jarna-heinonen
Jarna Heinonen | University of Turku
Professor, Entrepreneurship jarna.heinonen@utu.fi +358 50 563 1713
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