Ihsan, A. and Achriadi, S. 2021. Analysis of Students Competency in the Industrial Engineering Study Program South Aceh Polytechnic in Mastering the Concept Survey and Mapping Courses. Jurnal Inotera. 6, 2 (Oct. 2021), 89-98. DOI:https://doi.org/10.31572/inotera.Vol6.Iss2.2021.ID148.