Hasbullah, H., Bareduan, S. A. and Hasibuan, S. (2021) “Developing I4.0 Readiness Index for Factory Operation in Indonesia to Enhance INDI 4.0”, International Journal on Advanced Science, Engineering and Information Technology, 11(4), pp. 1668–1677. doi: 10.18517/ijaseit.11.4.14280.