Polish Journal of Management Studies
Polish Journal of Management Studies > 2017 > Vol. 16, No. 1 > 21--31
Polish Journal of Management Studies > 2017 > Vol. 16, No. 2 > 243--252
Polish Journal of Management Studies > 2017 > Vol. 16, No. 1 > 21--31
Polish Journal of Management Studies > 2017 > Vol. 16, No. 2 > 243--252