Perhimpunan manajemen mutu Indonesia
Indonesian QC Circles Convention , 1992
Buku Referensi
McGrath, James, author
McGraw-Hill, 2001
Buku Teks
Artikel Jurnal
Stiving, Mark, author
Entrepreneur Media, 2011
Buku Teks
Gerlach, Mary Jo Mirlenbrink, author
Delmar, Cengage Learning, 2014
Buku Teks