Kwarteng, Michael Adu; Ntsiful, Alex; Botchway, Raphael Kwaku; Pilík, Michal; Komínková Oplatková, Zuzana(Springer Science and Business Media Deutschland GmbH, 2020)
Nwaiwu, Fortune; Kwarteng, Michael Adu; Jibril, Abdul Bashiru; Buřita, Ladislav; Pilík, Michal(Academic Conferences and Publishing International Limited, 2020)