[E-mentor nr 2 (104) / 2024] Andrzej J. Gapinski
[E-mentor nr 2 (84) / 2020] Andrzej J. Gapinski
[E-mentor nr 4 (71) / 2017] Andrzej J. Gapinski
[E-mentor nr 2 (64) / 2016] Andrzej J. Gapinski