Muslikin, Nanang. “ANALISIS KUALITAS LAYANAN DENGAN METODE QUALITY FUNCTION DEPLOYMENT (QFD) PADA INDUSTRI JASA PEMELIHARAAN MATERIAL”. Journal of Industrial Engineering & Management Research 3, no. 4 (August 11, 2022): 223-235. Accessed February 4, 2023. https://jiemar.org/index.php/jiemar/article/view/387.