Fahmi, K., A. Mustofa, I. Rochmad, E. Sulastri, I. S. Wahyuni, and I. Irwansyah. “EFFECT OF ISO 9001:2015, ISO 14001:2015 AND ISO 45001:2018 ON OPERATIONAL PERFORMANCE OF AUTOMOTIVE INDUSTRIES”. Journal of Industrial Engineering & Management Research, Vol. 2, no. 1, Jan. 2021, pp. 13 -25, doi:10.7777/jiemar.v2i1.110.