source:Source: https://www.researchgate.net/profile/Emina-Terzic/publication/328698673_The_significance_of_vertical_and_horizontal_communication_for_business_effectiveness_in_sports_organisations/links/5be6fbc8a6fdcc3a8dcc1174/The-significance-of-vertical-and-horizontal-communication-for-business-effectiveness-in-sports-organisations.pdf
