1. [1] Japan Carpet Manufactures Association (2004)“Shinhann Carpet Hand Book” pp219-240
2. [2] Kimura H, Inatsugi T, Ogawa H (2002) J Text Mach Soc Japan (predecessor journal of J Tex Eng), 55, pp102-110
3. [3] Narsian MG (1972) J Text. Inst., 63, 525-532
4. [4] JIS L 0212-2 (1999) “Glossary of textile terms (except clothes) - Part 2: Textile interior products” p2
5. [5] Nippon Interior Fabrics association (2010) “Floor Coverings” p4