REFERENCES
- James , J. F. P. and David. , H. G. 1968 . J. Text. Inst. , 59 : 585
- IWTO Technical Committee. Specification for Test Methods IWTO-6-66 (E).
- IWTO Technical Committee. Specification for Test Methods IWTO-16-67 (E).
- Ott , R. 1958 . Bull. Inst, Text. France , 77 : 63