ICoM 2019 - People, planet and profit: Sustainable business and society. Vol. 2 [elektronický zdroj] : proceeding of the 9th international conference, Gödöllö, 13-14th June 2019 / editor Anna Dunay ; reviewers Miklós Daróczi, Anna Dunay, Zita Fodor Volume II . Gödöllö :  Szent István University , 2019 . 379 s . ISBN 978-963-269-882-3
http://icom2019.gtk.szie.hu/sites/default/files/upload/page/proceedings-icom-2019jun13-volume_ii-doi-ed_da.pdf .