Yonga isaphulelo esingu-20% Uma uthenga manje
Ama-Workshops we-Business Information Systems: ama-BIS 2019 International Workshops, Seville, Spain, Juni 26-28, 2019, Amaphepha Abuyekeziwe [1st ed. 2019] 978-3-030-36690-2, 978-3-030-36691-9
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