Polish Journal of Management Studies
Polish Journal of Management Studies > 2017 > Vol. 16, No. 1 > 234--247
Polish Journal of Management Studies > 2017 > Vol. 16, No. 2 > 233--242
Polish Journal of Management Studies > 2017 > Vol. 16, No. 1 > 234--247
Polish Journal of Management Studies > 2017 > Vol. 16, No. 2 > 233--242