E. A. Agustin and H. C. Wahyuni, “Quality Control Analysis of UD. Tiga Putra Crackers Product Using the Six Sigma Method and Failure Mode and Effect Analysisi (FMEA): Analisa Pengendalian Kualitas Kerupuk Ikan UD. Tiga Putra Menggunakan Metode Six Sigma dan Failure Mode and Effect Analysis (FMEA)”, acopen, vol. 8, no. 1, Jun. 2023.