Megawati, E. “PERAN CORPORATE SOCIAL RESPONSIBILITY (CSR) DALAM REVOLUSI INDUSTRI 4.0”. JURNAL ILMIAH BISNIS, PASAR MODAL DAN UMKM, Vol. 1, no. 2, Apr. 2018, pp. 79-84, https://ibn.e-journal.id/index.php/JIBPU/article/view/132.