Jibril, Abdul Bashiru; Kwarteng, Michael Adu; Chovancová, Miloslava; Vykydalová, Nikola(Academic Conferences and Publishing International (ACPI), 2019)
Jibril, Abdul Bashiru; Kwarteng, Michael Adu; Chovancová, Miloslava; Denanyoh, Richard; Owusu, Victor Kwarteng; Hoang, Hung Cuong(Tomas Bata Univ Zlin, 2019)