[1]
D. Erina and A. H. D. Purwanto, “Analysis of the Implementation of the ISO 9001:2015 Quality Management System Using GAP Analysis(Case Study at a National Gas Distribution Company)”, belacoss, vol. 1, no. 5, pp. 611–623, Sep. 2025, doi: 10.000000/belacoss.v1i5.457.