TY - JOUR AU - Editorial Office PY - 2019/04/30 Y2 - 2024/03/28 TI - ESJ April COVER PAGE JF - European Scientific Journal, ESJ JA - ESJ VL - 15 IS - 10 SE - Articles DO - UR - https://eujournal.org/index.php/esj/article/view/12012 AB - , ER -