Referensi:
[1] Stearns, P. N. (2018). The industrial revolution in world history. Routledge.
[2] Lasi, H., Fettke, P., Kemper, H. G., Feld, T., & Hoffmann, M. (2014). Industry 4.0. Business & information systems engineering, 6(4), 239-242.
[3] The Global Competitiveness Report 2019. World Economic Forum. http://www3.weforum.org/docs/WEF_TheGlobalCompetitivenessReport2019.pdf
[4] State of the Global Islamic Economy Report 2018/19. https://haladinar.io/hdn/doc/report2018.pdf
[5] Ibid.
[6] Chung A. Korea to attract 1 mil. Muslim tourists [Internet]. Korea Times. 2017. http://www.koreatimes.co.kr/www/nation/2017/03/113_197384.html
[8] State of the Global Islamic Economy Report 2018/19. https://haladinar.io/hdn/doc/report2018.pdf
[9] https://republika.co.id/berita/py2pea370/masih-banyak-pekerjaan-rumah-di-industri-halal
[10] https://republika.co.id/berita/pxej84370/pengamat-pemerintah-belum-serius-bangun-industri-halal