Ummi Kalsum, Muhammad Ramadhan, and Nurul Jannah. “ANALISIS STRATEGI IMPLEMENTASI CORPORATE CULTURE BANK SUMUT CABANG SYARIAH SIBOLGA PADA MASA PANDEMI COVID-19 DALAM PERSPEKTIF ISLAM”. EKSYA : Jurnal Ekonomi Syariah, Vol. 2, no. 2, Dec. 2021, pp. 78-86, https://jurnal.stain-madina.ac.id/index.php/eksya/article/view/599.