Karini, Nofitasari Damayanti, and Hasbullah Hasbullah. “Analisis Perbaikan Tingkat Keluhan Pelanggan Dengan Metode Total Quality Management (TQM) Di Industri Manufaktur Makanan”. Proceeding Mercu Buana Conference on Industrial Engineering, vol. 3, no. 1, June 2021, pp. 164-71, https://publikasi.mercubuana.ac.id/index.php/mbcie/article/view/27638.