Vera, Nanda Tejaningrum, and Suryanto Suryanto. “Competency Development of Quality Control in Automotive Companies to Improve Service Quality”. STRADA : Jurnal Ilmiah Kesehatan 10, no. 1 (May 2, 2021): 385–391. Accessed September 28, 2025. https://sjik.org/index.php/sjik/article/view/643.