COVID-19 PANDEMİSİNDE SOSYAL MEDYA KULLANIMINDAKİ DEĞİŞİM VE DİJİTAL PAZARLAMA İLİŞKİSİ ÜZERİNE BİR ANALİZ (AN ANALYSIS ON THE RELATIONSHIP OF SOCIAL MEDIA USAGE AND DIGITAL MARKETING IN THE COVID-19 PANDEMIA) - Müge ÇETİNER -Müge ÇETİNER-- Anıl ÖZER | International Journal of Disciplines in Economics & Administrative Sciences Studies