Suprihatin, Y., and Y. E. Kiswara Rahmantya. “SYSTEMATIC LITERATURE REVIEW OF INDUSTRY 4.0 IMPLEMENTATION OF PRODUCTIVITY”. Jurnal Ekonomi, vol. 12, no. 02, Apr. 2023, pp. 316-20, https://ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/1551.