Kwarteng, Michael Adu; Jibril, Abdul Bashiru; Vykydalová, Nikola; Pilík, Michal; Juřičková, Eva(Academic Conferences and Publishing International (ACPI), 2019)
Jibril, Abdul Bashiru; Kwarteng, Michael Adu; Chovancová, Miloslava; Vykydalová, Nikola(Academic Conferences and Publishing International (ACPI), 2019)