Secretary of Editorial Board
Dorota Czyżewska-Misztal, Ph.D.
PUEB, Poland
dorota.czyzewska-misztal@ue.poznan.pl

Editorial support
Eliza Szybowicz
PUEB, Poland
eliza.szybowicz@ue.poznan.pl

Technical writer
Marta Dobrecka
PUEB, Poland
marta.dobrecka@ue.poznan.pl

DTP Operator
Michał Krawczyk
PUEB, Poland
michal.krawczyk@ue.poznan.pl

Publishing house
Poznań University of Economics and Business
ul. Powstańców Wlkp. 16
61-895 Poznań, Poland

Uploading of content
Mr SIEWE Armand Rostant
Web master AIELF
IT Manager, University of Dschang – Cameroon
armand.siewe@univ-dschang.org